CCTV News:In two months, hundreds of pet dogs died strangely, with the same symptoms and painful death methods, which aroused the vigilance of many pet dog owners in Dalian. They visited repeatedly in areas with high incidence of pet dog poisoning and finally found an important clue.

Many pet dogs have been poisoned (network map)

The key to uncover the truth is this pet dog named Dahuang. Rhubarb is a stray dog adopted by Ms. Wang. On October 24th, Rhubarb played in front of Ms. Wang’s shop as usual.

Ms. Wang, a Dalian citizen:At that time, I was working in the house, and the dog took the medicine there. At that time, the neighbor found it and said that the chicken liver was wrapped in yellow pills.

The experience of rhubarb quickly spread among pets, and everyone quickly rushed to the scene to find clues. Finally, they found a surveillance camera of a lottery station on the side of the road, and this camera just recorded the whole process.

Ms. Li, a citizen of Dalian:Now the suspect appears, with a cigarette in his left hand and something in his right hand. You see, he threw something in this position, and then he turned to see if the dog would eat it. He specially waited for the rhubarb to eat what he threw, and he stayed here for 15 seconds to wait for the rhubarb to eat it.

The owner of the lottery shop next to him found that what Rhubarb ate was very suspicious. In association with the recent pet dog poisoning incidents, the lottery shop owner took out what Rhubarb had in his mouth. Two hours later, rhubarb showed symptoms of shortness of breath. This shows that there is something wrong with the yellow tablets taken by rhubarb.

Veterinarian Zhao Yingzhi:Through these cases, our experience in treatment and some information we checked, we suspect that it is an anti-tuberculosis drug.

Reporter:Is this medicine for people or dogs?

Veterinarians:For human use, anti-tuberculosis drugs, because there is no enzyme to resist this drug in dogs, so as long as they eat a little, they will be poisoned.

Fortunately, rhubarb didn’t eat much, but it finally survived after emergency rescue. The experience of rhubarb and the surveillance video confirmed the suspicion of pet dog owners for the first time. It is true that some people deliberately poisoned and killed dogs, and the poisons were carefully selected.

Veterinarian Zhao Yingzhi:There is no specific medicine, and it is recorded in the data that vitamin B6 is injected in large quantities, but the clinical effect is not particularly obvious through us.

The reporter learned that on August 8 this year, there was an article on the Internet that introduced the use of this drug to kill cats and dogs. Although this article was later reported and deleted by animal protection groups, the methods introduced in the article still spread. What is more serious is that this medicine is not only harmful to pets, but also a threat to people, especially children.

Veterinarian Zhao Yingzhi:Adults may not have a big problem, but if they are children, they will definitely have problems. Because children are small in weight, taking one tablet of this medicine may cause problems. This medicine should be a prescription drug.

At present, the police in Dalian have accepted the reports of pet dog owners. It is understood that the police have merged several poisoning cases and the case is currently under investigation.

Have you noticed that there has been a lot of good news from operators recently?

It is also a port number transfer network, and it is also vying to get on VoLTE.

One of them, Xiao Lei, has been waiting for a long time-the mobile phone number supports remote account cancellation.

This policy not only saves time but also saves money. (After all, the trip home can cover your phone bill for several years.)

Yes, you heard me right.

From January 1st this year, all three major operators can cancel their accounts in different places.

Xiaolei wants to praise Unicom most, and he went online to cancel his account early, so we don’t have to run the business hall again.

As for mobile telecommunications, it is a little more difficult.

Last week, Mobile began to pilot online account cancellation. But if you open China Mobile App, you probably can’t find the account cancellation entrance, because it is only limited to Shaanxi Mobile number for the time being.

Mobile number and telecom users in other areas can only go to the business hall to handle it.

(account cancellation entrance: China mobile App→ classification → life → online sales number)

Lei doesn’t know when it will be open to the whole country. Before that, mobile phone users should take a look at the preparations first …

Method for cancel number of mobile telecommunication in different places

Listen, to cancel the number in the business hall, you need:

I bring my ID card and service password and go to the designated business hall to handle it.

Not all business halls can do it.

Take Guangzhou, where Xiaolei is located, as an example. Only the business hall can close the account in different places.

(An authorized agency like this won’t do)

So before you go, be sure to call 10086/10000 to find out which business halls can do it.

But, you can’t just cancel it if you go.

Your mobile phone number cannot have the following conditions:

Arrears;
Have a contract;
It is bound with services such as family number and broadband.

Only one situation:

At the time of inquiry, Xiao Lei found a secret, and the method of canceling the account between Mobile GSM and M-Zone Shenzhouxing was actually different.

The customer service explained this to me:

You must go to the business hall to make an appointment to cancel your account. If you don’t pay for the next 90 days, you will automatically sell the number;
And Shenzhouxing and M-Zone will automatically cancel the number if the arrears exceed 90 days.

You don’t pay your phone bill for 90 days. How can there be such a big difference?

Under the coercion of Xiao Lei, the customer service told Xiao Lei:

Because GSM is prepaid, arrears will affect credit, so you have to make an appointment to cancel your account;
However, Shenzhouxing and M-Zone are post-paid, and how much is charged, even if the arrears are directly thrown away, it will not affect the credit.

In other words, Shenzhouxing and M-Zone don’t have to go to the business hall to close their accounts.

Fortunately, little ray asked, and saved you another thing?

In a word, Xiao Lei suggests that you call 10086/10000, where you belong, to find out your account cancellation conditions, so as not to make a trip in vain.

If there is a Shaanxi mobile phone friend who is reading this article, the account cancellation process on the mobile App is similar to that of China Unicom, and Xiao Lei said it together.

Unicom remote number cancellation method

Xiao Lei cancelled a Unicom number in January.

The entrance is easy to find:

"Mobile phone business hall App → service → handling → account cancellation"

First of all, we have to go through the triple verification of "SMS verification code+uploading ID photo+face recognition". The ID card must be taken now, and photos in the photo album cannot be used.

I can’t help it. I have to prevent others from maliciously canceling your number.

At this time, China Unicom will remind you that the phone bill should not be less than 50 yuan, otherwise it may not be possible to cancel the account ~ (Mobile can cancel online as long as it does not owe money at that time)

In order to close the account successfully, Xiao Lei gritted his teeth and charged the phone bill again.

Of course, the extra money will be refunded to you.

It is only by transferring to the balance of another Unicom number in the same province.

For example, the number of Xiaolei Guangdong Unicom cannot be transferred to Jiangsu Unicom.

Just when I crossed my heart and thought I was done, huh? ? ? Unknown error. What the hell? !

Ray suddenly felt struck by lightning.

No way, find customer service! When I opened Unicom official website and found that there were only two people waiting in line, Lei was secretly pleased.

The problem is that miss customer service can’t solve the problems that Xiaolei encountered, and finally she just gave a complaint feedback link …

Just when Xiaolei was disheartened, ready to give up and went directly to the offline business hall to cancel the account, he suddenly had a flash of light and thought of the key to the problem: Unicom’s mobile phone card number is divided into 4G and 2 G and 3 G.

Generally, 4G numbers belong to China Unicom’s national system CBSS, while many 2 and 3G numbers still belong to local provinces and cities BSS. The two card systems are not connected, so naturally they cannot be transferred.

And the number I want to transfer to is the 3G card!

Sure enough, Xiao Lei changed the number to a colleague’s 4G card, and it was a success.

Almost a month later, the balance was directly charged to the number I filled in.

In addition, Unicom also provides a way that it likes very much-just don’t.

However, if you want cash, you can do it. You have to go to Unicom’s own business hall to cancel the number, and support bank card transfer to refund the balance.

It should be noted that the donation fee is non-refundable, and only the money that you recharge can be refunded.

In contrast, the refund of mobile telecom is very pit.

Lei asked the customer service:

At present, there is no uniform standard for telecommunications, and whether cash can be refunded depends on local policies;
Mobile can only transfer the balance to the mobile number of the same attribution, and cannot refund cash.

Although mobile tries to save the user churn rate by raising various thresholds.

But now there is a remote account cancellation+port number transfer, and it is not a simple matter of who we want to use.

I asked if you were afraid.

Wait a minute! Don’t go after reading the article!

Xiao Lei made a small questionnaire, which is related to you. Used to optimize the article and let you see more interesting content.

　　The educational function of chemistry course is mainly reflected in four aspects: first, to impart basic concepts and key abilities and to discriminate scientific facts; The second is to enlighten scientific thinking and methods and solve real problems; Third, cultivate scientific spirit and quality, and understand the value of disciplines; Fourth, carry forward the patriotic spirit and establish a sense of responsibility and mission to serve the motherland. As a key link in education, the college entrance examination must also implement the fundamental task of cultivating people by virtue, give play to the correct educational orientation of the examination, and give play to the core functions of cultivating people by virtue, selecting materials for service and guiding teaching.

　　Change ideas and jump out of the cycle

　　Looking back over the years, the real questions of the national chemistry college entrance examination are mostly around the major themes of the times and the frontier achievements of chemistry in social life, carefully selecting situational materials such as daily life, production and environmental protection, academic exploration and experimental exploration, focusing on the main contents of the subject, innovating the presentation methods of test questions and information, and highlighting the examination of information sorting ability, critical thinking ability, dialectical thinking ability and language expression ability, which not only examines students’ academic accomplishment and key ability, but also gives play to the educational value and role of chemical science.

　　The common problems in the review process of senior three in general schools are "four stresses and four despises": attaching importance to teaching AIDS and neglecting teaching materials; Pay more attention to knowledge than thinking; Emphasis on answers, light process; Re-explain, light experience. Especially in the last month before the exam, many teachers often adopt the mode of "practice+comment" and "exam+comment", which leads to the boring and ineffective state of students desperately brushing questions and teachers correcting and explaining, leading to physical and mental fatigue and anxiety of teachers and students.

　　In the final review stage, chemistry teachers should change their ideas and jump out of the cycle of "practice+lecture+examination". Through in-depth research on the real questions of college entrance examination, tracing back to the source, and linking the key topics, hot knowledge topics and innovative functional test questions through "theme", the textbook knowledge and problem-solving methods are reconstructed, so that students can build their own knowledge topics and find the focus and breakthrough points of review.

　　Grasp the main content

　　The main contents of high school chemistry include basic concepts and research methods, material structure and properties, chemical reaction principle, preparation and application of inorganic substances, experimental basis and scientific inquiry, organic synthesis and application. Linking textbook topics through themes is to consciously combine the knowledge of each major section to make them interrelated and mutually confirmed. The teaching theme is constructed by creating situations, which makes the original knowledge in students’ minds modular and functional, and promotes the synchronous improvement of students’ knowledge and ability. For example, when reviewing the related contents of salt hydrolysis and weak electrolyte ionization, the following teaching flow can be designed:

　　Summarize the learned hydrolysis reaction → the basic form of salt hydrolysis reaction → understand that it is weak to hydrolyze from the perspective of double decomposition reaction → take CH_3COONa as an example to analyze the relationship between the hydrolysis equilibrium constant of CH_3COOH and the ionization equilibrium constant of CH_3COOH → the weaker it is, the more hydrolyzed it is → analyze the acidity and alkalinity of the mixed solution with the same concentration of ch _ 3cooh and CH_3COONa by combining the equilibrium constant. The acidity and alkalinity of the mixed solution of HCN and NaCN with the same concentration → the comparison of ion concentrations in the two groups of solutions → the analysis of the acidity and alkalinity of the solutions of NaHCO_3, NaHSO_3 and KHC_2O_4 and the concentration of related particles combined with equilibrium constants.

　　When reviewing elemental compounds, students should be guided to understand the properties of elements, their simple substances and compounds with their structures and principles. For example, it emphasizes the influence of chemical bonds and intermolecular forces on the properties of matter, and establishes a channel between micro and macro through the forces; Design a teaching theme with change view under the guidance of balance thought, and deeply understand elements and their compounds, electrochemistry, energy, equilibrium movement and other issues; This paper analyzes chemical phenomena and problems from macro and micro levels as well as qualitative and quantitative perspectives.

　　Generally, the test questions of chemical reaction principle take continuous reaction or parallel reaction (competitive reaction) in industrial production as situational material, and mainly examine enthalpy change (material accounting, energy accounting and economic accounting), chemical equilibrium constant (the problem of material equilibrium transformation), chemical reaction rate and industrial production safety, and mainly analyze it from two angles of balance and rate. The chemical equilibrium is calculated with the equilibrium constant as the core, and the chemical rate mainly analyzes its influencing factors, and finally returns to the temperature for adjustment. For example, in electrochemical review, students should focus on the ionic behavior in electrolyte solution.

　　In the review of experimental chemistry, it is best to choose the preparation of substances to design thematic teaching, because this is the most complete process. Let students fully understand the purpose, method, result and conclusion of the experiment. The core is separation and purification, the focus is on the operation specification, and the difficulty is the principle behind the operation. This requires students to learn from and use the basic experimental methods in middle school chemistry according to the basic principles of the experiment, give priority to the analysis of the material system as the first element of the experiment, and fully consider the restrictive conditions such as experimental equipment and drugs, experimental requirements, experimental safety, tail gas treatment, method selection and other issues to complete the design, analysis or evaluation of the chemical experiment.

　　Cause analysis of wrong questions

　　In the review teaching, in addition to the above topics, we can also carry out the theme teaching of students’ wrong questions and cause analysis. From the perspective of problem solving, subject core literacy is the comprehensive quality and key ability of students in the process of solving real, meaningful, complex and even unpredictable situational problems by using the knowledge and skills obtained from subject courses. In teaching activities, guiding students to carry out comprehensive analysis, practice model cognition and evidence reasoning according to the knowledge of material structure and nature, basic concepts and basic principles in real problem situations can promote the development of students’ understanding of chemical problems, and then realize the development from chemical subject knowledge to chemical core literacy. The selected related questions should be more exploratory, active, practical, open and hierarchical, so as to fully reflect its function of improving students’ comprehensive ability to use chemical knowledge to solve practical problems. In the process of analyzing test questions, we should analyze students’ answers, especially the language expression, thinking and standardization of answering questions, refine students’ feedback, make full use of feedback information, sort out difficult questions, find deep-seated reasons, check for missing items in time, and construct theme teaching through model analysis of test questions to improve review efficiency. (Zhou Xuegong, a researcher and senior teacher of Haining Teacher Training School, Zhejiang Province)

CCTV News:The World Health Organization has designated the last week of April as "World Immunization Week", and this year’s theme is "Vaccine makes us closer". The reporter learned from National Health Commission yesterday (28th) that in order to prevent cervical cancer, China has started the pilot human papillomavirus vaccine, that is, the free vaccination of HPV vaccine in some areas.

At the National People’s Congress in 2020, many deputies called for free HPV vaccination for school-age girls in China as soon as possible. In February this year, National Health Commission publicly replied that it would promote the pilot project first, encourage qualified areas to actively adopt various financing models, and gradually carry out free HPV vaccination. Just a few days ago, Erdos, Inner Mongolia, launched the city-wide HPV vaccine free vaccination project, with the city’s 13-mdash; 18-year-old women can get three shots of HPV vaccine free of charge at designated medical institutions only by paying the vaccination service fee. Guangdong province also said recently that it is actively studying the free vaccination of HPV vaccine for school-age girls.

Zhao Fanghui, Director of Epidemiology Department of Cancer Hospital of China Academy of Medical Sciences:The first way is to enhance the public’s correct scientific understanding of HPV vaccine and cervical cancer and vaccinate as soon as possible; The second way is to promote from the national or government level, and bring HPV vaccine into the immunization program as soon as possible. I think this is also the best way to improve the coverage of HPV vaccination.

The vaccination of girls aged 9 to 14 in China is less than 1%

Last November, led by the World Health Organization, 194 countries around the world, including China, made the first commitment to eliminate cervical cancer by 2030. At present, cervical cancer is the second largest female malignant tumor in China, and the number of new cases in China is around 110,000 every year. In the past two decades, the incidence and mortality have been increasing year by year, and they are getting younger.

Zhao Fanghui, Director of Epidemiology Department of Cancer Hospital of China Academy of Medical Sciences:We found that this younger age is the average in the past. The average onset of cervical cancer may be in the 60 s, but now it can reach the age of 40 or 50. Of course, some patients are younger, and they will also suffer from it in their twenties. From our point of view, it will be about 5 years earlier than 20 years ago.

HPV vaccination is one of the most critical measures to prevent cervical cancer, and another key measure is cervical cancer screening. With the birth of HPV vaccine, cervical cancer is expected to become the first malignant tumor that can be completely eliminated. The standard recommended by WHO is that 90% of girls should complete HPV vaccination before the age of 15, but many countries, including China, are far from meeting this standard.

Bivalent and tetravalent vaccines have provided most protection.

The data show that more than 99% of cervical cancer is related to human papillomavirus, that is, HPV persistent infection. After the whole process of HPV vaccination, it can provide enough protection for women, and there is no doubt about the effectiveness and safety of the vaccine. At present, there are four kinds of HPV vaccines approved for marketing in China. How to choose and fight?

The four approved HPV vaccines include two bivalent vaccines, a tetravalent vaccine and a nine-valent vaccine. The valence mentioned here refers to the type of virus, so simply speaking, the multivalent vaccine is how many types of HPV virus can be prevented. The suitable age for bivalent and tetravalent vaccines is 9-mdash; 45 years old, the suitable age for nine-valent vaccine is 16-mdash; 26 years old, all four vaccines need three shots. Since the price represents the type of virus, is it necessary to vaccinate high-priced vaccines to play a better protective role?

Zhao Fanghui, Director of Epidemiology Department of Cancer Hospital of China Academy of Medical Sciences:There are fourteen types of high-risk human papillomavirus that cause cervical cancer, among which the most common types are 16 and 18, which will cause more than 80% of cervical cancer. Therefore, bivalent and tetravalent vaccines cover 16 and 18 types, and the nine-valent vaccine has five additional types besides the 16 and 18 most important types. Two-valence, four-valence, and nine-valence may sound very different in numbers, but in fact the difference is 10%— Between 15%, bivalent inoculation can avoid cervical cancer with high probability.

The incidence of malignant tumor increases and the mortality decreases.

Yesterday (28th), the Beijing Cancer Prevention and Research Office officially released the Annual Report on Cancer Registration in Beijing in 2020. This is the first time that Beijing has publicly released the cancer monitoring data of its residents in the form of an annual report.

The Annual Report summarizes the 2017 tumor registration data submitted by 168 secondary and above medical institutions in the city, and analyzes the incidence and death of 23 common malignant tumors, the different characteristics of male and female incidence spectra, and regional differences. According to the Annual Report, there were 50,070 new cases of malignant tumor among registered residents in Beijing in 2017, with an overall incidence rate of 367.88/100,000, with an average annual increase of 2.11% in the past 10 years. The mortality rate is 191.38/100,000, with an average annual decrease of 1.06% in 10 years.

Ji Jiafu, Dean of Peking University Cancer Hospital:Although the incidence rate has increased, the mortality rate has decreased. First, it is related to the corresponding and relevant policies issued by the government, encouraging early screening; The second is that with the improvement of education level, people’s attention and awareness of their own health are increasing. Therefore, the tumor was discovered earlier. Although it was discovered, the cure rate was relatively high and the mortality rate decreased.

The data show that the top five diseases in men are lung cancer, colorectal cancer, liver cancer, gastric cancer and prostate cancer, and the top five diseases in women are breast cancer, lung cancer, thyroid cancer, colorectal cancer and uterine body cancer.

11. What are the contraindications for vaccination?

A: At present, there are contraindications to any vaccination except rabies vaccine. The usual contraindications are those who are suffering from serious organ diseases, especially those in active stage; Acute infectious diseases are fever; Children with immune deficiency can’t be vaccinated with live vaccine because they are allergic to vaccine ingredients. When there are clear contraindications, it is really impossible to vaccinate, and vaccination should be carried out after the vaccinated object is ill.

12. Can vaccination guarantee that you will not get sick?

A: All vaccines have a certain protection rate, but due to the individual differences of the recipients, a few people will not have a protective effect after vaccination, and they may still get sick. Another case is the coupled disease. If the recipient happens to be in the incubation period of the disease targeted by the vaccine at the time of vaccination, the disease will still occur after vaccination without protective effect.

13. How to compensate for the abnormal reaction of vaccination?

A: Vaccination is a public health measure. While protecting the health of the vast majority of people, very few people bear the risk of abnormal reactions. Taking full account of the rights and interests of the recipients, the Regulations on the Administration of Vaccine Circulation and Vaccination stipulates that those who have suffered serious damage due to abnormal reactions shall be given one-time compensation, and the specific compensation measures shall be formulated by the people’s governments of provinces, autonomous regions and municipalities directly under the Central Government. The compensation expenses for abnormal reactions caused by Class I vaccines shall be arranged by the provincial finance, and those caused by Class II vaccines (self-funded vaccination) shall be borne by the production enterprises.

Abnormal reaction is inevitable because of the inherent characteristics of the vaccine itself; The occurrence of abnormal reaction is a small probability event; It is neither caused by vaccine quality problems nor by implementation errors, and no one is at fault. Through vaccination, an immune barry is established to protect that recipient and the people around the recipient. Therefore, it is not compensation to give certain economic compensation to the recipients.

14. Do you need routine screening before vaccination?

A: The contraindications of each vaccine are different and have their own special contraindications. General contraindications can only be judged by inquiry or simple physical examination, and it is impossible to screen all contraindications, and the screening cost is expensive; Routine screening of all contraindications before vaccination is not recommended internationally.

15. What will be the impact of public doubts about vaccine safety?

A: If the public’s confidence in vaccines and vaccination declines, it may lead parents of children to refuse to vaccinate their children. Without vaccination, the vaccination rate of the population will decrease, the immune barrier of the population will decrease, and the corresponding infectious diseases may break out.

For example, in Nigeria in August, 2003, some people claimed that polio vaccine (OPV) was unsafe and would lead to infertility of children in adulthood. This has led to the cessation of polio vaccination in two northern Nigerian States, and the proportion of polio vaccination in other States has also dropped significantly. As a result, polio broke out in northern Nigeria. The outbreak eventually paralyzed thousands of children in Nigeria and spread the disease to 19 other polio-free countries. Many children had to face the tragedy of lifelong disability, which could have been avoided by vaccination. In addition, countries such as Japan and Britain have also resisted vaccination because of the dissemination of false information about vaccination. The consequence is that there is an immune gap and a loophole in the immune barrier of the population, which leads to the outbreak of vaccines against infectious diseases.

16. What problems should parents pay attention to before children are vaccinated?

A: Parents should take their children to qualified vaccination clinics recognized by government departments for vaccination. Before vaccination, they should truthfully provide the vaccinators with the health status of the recipients so that the staff can judge whether they can be vaccinated. Parents should pay special attention to whether their children have acute diseases, allergies, immune insufficiency, nervous system diseases, etc., and cooperate with vaccination under the guidance of vaccinators. For example, before the newborn is vaccinated, parents need to cooperate with the vaccinators, do a good job in inquiring about the newborn’s health status and general health examination, and provide the newborn’s health status, including whether it is full-term delivery at birth, birth weight, newborn birth score, congenital birth defects, whether it is suffering from a certain disease, etc., so that the vaccinators can correctly grasp the contraindications of vaccination and decide whether to vaccinate. If you find anything suspicious after vaccination, you should immediately consult the vaccination staff and seek medical treatment if necessary, so as to get timely and correct treatment.

17. Under what circumstances are children not suitable for vaccination?

A: Acute disease: If parents find that their children have a fever, especially those with a fever above 37.6℃, or children with other obvious symptoms at the same time, they should suspend vaccination. After the child recovers and nursed back to health for a period of time, he will be vaccinated. In addition, if the child is in the onset or recovery period of an acute disease, or in the acute attack period of a chronic disease, the vaccination should be postponed until the child recovers.

Allergic constitution: individual children have allergic constitution, which is easily ignored by parents. Children with allergic constitution may occasionally cause allergic reactions after vaccination, resulting in adverse reactions. The so-called allergic constitution refers to children’s repeated contact with a certain substance, which is prone to allergic reactions and corresponding symptoms, among which allergic skin rash is the most common. If it is found that allergic reactions have occurred in the past, vaccination should be stopped.

Immune insufficiency: It is generally believed that children’s immune insufficiency is not only worse than that of healthy people after vaccination, but also easy to cause adverse reactions, especially when vaccinated with live vaccines. Serious immune insufficiency includes immune deficiency (such as agammaglobulinemia/hypogammaglobulinemia), leukemia, lymphoma, malignant tumor and so on. If children are prone to recurrent bacterial or viral infections, often accompanied by symptoms such as fever, rash and lymphadenopathy after infection, the possibility of immune insufficiency should be suspected, and special care should be taken when vaccinating.

Nervous system diseases: It is dangerous for people with nervous system diseases to get some vaccines, so it has been confirmed that children with nervous system diseases, such as epilepsy, encephalopathy, hysteria, encephalitis sequela, convulsions or convulsions, should be carefully vaccinated under the guidance of doctors.

18. What is the probability of coupling disease during vaccination?

A: Take children’s coupled illness as an example. According to the survey of health service demand in China, the two-week prevalence rate of children aged 0-4 years old is 17.4%. Therefore, even if the vaccination is safe, about 17 children out of every 100 vaccinated children will suffer from other diseases in the next two weeks. Although the diseases have nothing to do with vaccination, they are easily misunderstood as abnormal reactions to vaccination because the time is closely related to vaccination. Take the coupled death of newborns vaccinated with hepatitis B vaccine as an example. The mortality rate of newborns (0-28 days) in China is 10.7‰, and the number of children born every year in China is about 16 million. Based on this calculation, about 170,000 newborns die every year in China, which means about 466 newborns die every day. According to the regulations of China’s hepatitis B vaccine immunization program, hepatitis B vaccine should be vaccinated within 24 hours after children are born. Based on the national vaccination rate of the first dose of hepatitis B vaccine in time (within 24 hours after birth) of 75%, about 350 newborn deaths are vaccinated every day, that is, there may be 350 cases of coupled deaths in newborns vaccinated with hepatitis B vaccine every day in China.

19. How do we classify vaccines in vaccination management in China?

A: According to the Regulations on the Administration of Vaccine Circulation and Vaccination promulgated by the State Council in 2005, vaccines are divided into two categories in China.

The first category of vaccines refers to vaccines provided by the government to citizens free of charge, which citizens should receive in accordance with government regulations, including vaccines determined by the national immunization plan, vaccines added by the people’s governments of provinces, autonomous regions and municipalities directly under the Central Government in the implementation of the national immunization plan, and vaccines used for emergency vaccination or mass vaccination organized by the people’s governments at or above the county level or their health authorities. The second category of vaccines refers to other vaccines that are inoculated by citizens at their own expense and voluntarily.

Incorporating the second type of vaccine into the first type of vaccine mainly considers the degree of harm to public health caused by diseases that can be prevented by the vaccine, the effect and safety of the vaccine, the production and supply capacity of domestic vaccines and the financial burden of the government. The first kind of vaccines are generally used to prevent common infectious diseases that seriously endanger children’s health, infectious diseases with relatively high morbidity and mortality in China, and diseases that are generally included in immunization programs in other countries and diseases that are eliminated or controlled globally.

20. What are the management requirements for vaccination services?

A: The Regulations on the Administration of Vaccine Circulation and Vaccination promulgated by the State Council in 2005 stipulates that the medical and health institutions designated by the health authorities of the people’s governments at the county level in accordance with the regulations shall undertake the vaccination work. Vaccination units are required to have a medical institution’s practice license, a practicing physician, a practicing assistant physician, a nurse or a rural doctor who has passed the vaccination professional training organized by the health department of the people’s government at the county level and passed the examination, and a cold storage facility, equipment and a cold storage system that meet the standards for vaccine storage and transportation management.

In order to standardize the vaccination management, the former Ministry of Health promulgated the Code for Vaccination Work, together with the State Food and Drug Administration, promulgated the Code for the Management of Vaccine Storage and Transportation, and also formulated a series of rules and regulations, which set clear technical requirements for vaccine planning, warehousing management, cold chain management and vaccination services. According to local needs, local health administrative departments have formulated corresponding working rules and organized daily work assessment.

Cdc centers at all levels are responsible for technical guidance of vaccination and immunization planning, and undertake the monitoring and control of vaccines against diseases, formulation of vaccine demand plan of national immunization planning, management and maintenance of cold chain, distribution and guidance of vaccines, monitoring of suspected abnormal reactions to vaccination, monitoring of vaccination rate, personnel training and social publicity and mobilization. Grass-roots vaccination units are responsible for the vaccine and cold chain management of their own units, establish vaccination certificates and vaccination cards for school-age children, and provide vaccination services in accordance with the immunization procedures formulated by the state.

the previous page next page

So far, the top three domestic box offices.

1905 movie network news 　　According to statistics, as ofeightmoontwelveJapan Saturday,2017The cumulative box office in the mainland has broken through in.364Compared with the same period last year, the total growth rate is close.55Billion. Among them, domestic films performed strongly at the beginning of the year and in the summer — — With the help of waiting for the film, the Spring Festival filesevenTianjingtun33Billion,seven、eightThe moon was born again.Wolf Warriors2》And other explosive works. Finally, accumulate28More than 100 million domestic films won183Billion box office, in the past weekend, the successful realization of imported films.181The overtaking of billions of data.

　

Domestic films surpassed imported films "Wolf Warriors 2" and "Fast 8" in the box office.

　

In 2017, the mainland box office had exceeded 36.4 billion as of the evening of August 12, a substantial increase of nearly 5.5 billion compared with the same period last year. Among them, domestic films made more than 18.3 billion at the box office, higher than the 18.1 billion imported films. From the analysis of specific data, the peak of the market appeared in February, and the box office in that month climbed to 6.18 billion with the help of many films in the Spring Festival. In the week of the Spring Festival holiday alone, the mainland market swallowed more than 3.3 billion. The summer file that just passed followed in July with 5.04 billion yuan, and the box office increased by nearly 500 million yuan year-on-year. Domestic films are also the most outstanding in these two periods, and almost all the top ten box office paintings are concentrated in this period.

　

The overall box office climb is also inseparable from the performance of a single film. As of press time, in 2017, 54 of the new films released in the mainland exceeded 100 million at the box office and 12 exceeded 1 billion. Of the over 100 million films, domestic films account for 28, with a slightly higher proportion than imported films. There is no doubt that the champion of the overall list is the record-breaking Wolf Warriors 2, with a single contribution of more than 4 billion at the box office, while the champion of imported films is 2.67 billion at the box office, and Kung Fu Yoga starring Jackie Chan ranks third with 1.75 billion.

National Day movies are highly competitive.

　

The National Day file and the New Year file are ready to go. The annual box office is 50 billion or no suspense.

　

In August, "Wolf Warriors 2" rewrote the long-lost box office record in film history, and became the new overlord of the mainland film market with an unshakable 4.2 billion box office. At the same time, the film’s hot performance also detonated the summer file that was slightly weak in the first half and revitalized the market. Such a strong momentum naturally makes us have more expectations for the film market in the second half of the year.

　

According to the news that has been exposed so far, there are many kinds of Chinese films that will meet the audience in the second half of the year, including modern military themes that are favored by the market at present, comedies and fantasy films that have always been popular with the audience.

　

In addition, several film directors — — Xiaogang Feng, Chen Kaige and Yuan Heping will all return to the battlefield with their works. Xiaogang Feng’s new film will be the first to be released during the National Day. The film is based on the cultural and art troupe in the 70 s and 80 s, restoring the former director memories of youth; At the end of the year, Chen Kaige’s works and those directed by Yuan Heping and supervised by Tsui Hark are scheduled. The former is based on the story of a demon cat stirring Chang ‘an in the prosperous Tang Dynasty, while the latter focuses on a fantastic Jianghu adventure in the Uber-ridden era.

　

Judging from the release time, the above-mentioned Chinese works will strongly occupy the National Day file and the New Year file, which are also the two most important golden files in the mainland film market in the second half of the year. According to the current growth trend of the broader market, with the strong help of the National Day and New Year movies, it is very likely that the total box office will exceed 50 billion in 2017.

　　"Time has taken away youth, and years have eroded pride. Once a teenager, he is now in a hospital bed. This is the life course that each of us must go through. When you are old, who will be with you … …” The reading of this sitcom is straightforward, and it also puts forward a realistic and urgent proposition: providing for the elderly.

　　A few days ago, the sitcom "Sunflower", which was performed by the "post-90 s" nurses in Hudong Nursing Home for the Aged in Yangpu District, was performed in Shanghai for some medical staff. Sunflower tells the true story of young nurses in this nursing home for the aged. Here, the "post-90 s" nurse team is the main force of nursing, and 13 young girls account for half of the nursing staff in the hospital. The oldest is 27 years old and the youngest is 23 years old. They take care of another group of "post-90 s", those old people in their eighties and nineties.

　　When you treat the old man as your closest relative, your fear will dissipate.

　　"My name is Ni Luyan, born in 1991, and I have worked in Hudong Nursing Home for the Aged for six years. Perhaps it is because I took care of my grandparents who were lying in bed since I was a child. When I filled in my volunteers for the senior high school entrance examination, I did not hesitate to choose the nursing major of Yangpu Health School. " Ni Luyan said that after graduation, she was assigned to Hudong Nursing Home for the Aged as she wished, and faced more "grandfathers and grandmothers" and found that "reality is not a fairy tale".

　　In this nursing home for the aged, the average age of the elderly is 85, and there are many elderly people in their 90s. Most of them suffer from chronic diseases such as coronary heart disease, diabetes and sequelae of cerebral infarction, which lead to disability and dementia of the elderly. They have little ability to express clearly and lack the necessary reaction ability. This is the biggest difference between nursing homes and nursing homes.

　　Grandma Xu in a ward is a patient who is difficult to care for by Ni Luyan. When she was admitted to hospital because of sequelae of cerebral infarction, her face was very thin and she had many pressure sores on her body. Blister sores are particularly easy to break, as long as they are broken, the wound will be eroded. When the illness was serious, Grandma Xu had as many as 16 blisters all over her body, and 40% of her skin was broken. Broken blister sores are often accompanied by thick yellow liquid flowing out, giving off a pungent smell.

　　The smell made the elderly living in the same ward ask for a room change, and the nursing staff resigned one after another. Even the family members of the elderly did not want to stay long, so they left with a few words during the visit … … All this, the old man saw in his eyes, so he has been depressed and unwilling to cooperate with the treatment.

　　"When these strangers are regarded as close relatives, the inexplicable fear and loss will be dispelled by a determination." Ni Luyan took care of the elderly.

　　The stench of wound ulceration is prohibitive. Ni Luyan and her colleagues wear "thickened masks" with multiple layers of gauze. More than 50 pieces of gauze are used for each dressing change, and it takes an hour or two. They keep bending and standing for an hour or two, and concentrate on treating the wound. In order to make the old people clean and comfortable without peculiar smell, this group of nurses should change the medicine for Grandma Xu at least twice a day, four or five times a day. Dressing in winter, the elderly are afraid of the cold, and several nurses set up a "small tent" on the hospital bed with quilts and bamboo poles to keep warm and avoid the contact between broken skin and clothes.

　　Everything comes to him who waits, and with continuous nursing, the blister gradually closes up until it disappears. A smile appears on the lost old man’s face, and he jokes and amuses with the nurse every day, just like a different person.

　　The "painter" nurse painted 200 pictures in five years, knocking on the soft heart of the old man.

　　What is the most important thing in nursing work? Fu Rong, a young nurse, blurted out, "Skilled." Bu Lina, the head nurse of Hudong Geriatric Nursing Home in Yangpu District, smiled and shook her head and said, "It is the temperature passed down from hand to hand."

　　In this nursing home for the aged, there is also a "painter" nurse. Her name is Zhang Yuan.

　　"For most patients in our nursing home, healing and rehabilitation seem to be distant dreams, and their emotions are inevitably pessimistic and disappointed." Zhang Yuan picked up a childhood brush, and painting played a strange role here.

　　Grandpa Shi in the second ward is 86 years old, like an "old child". He especially likes to eat beef jerky, spiced beans and scallion cakes. He comes to everyone. The problem is that he has diabetes and can’t keep his mouth shut, which is going to cause trouble.

　　Once, on the birthday of Wang Apo in the next ward, several nurses bought a cake for the old man. Grandpa Shi looked at it, staring at the cake with his eyes fixed on it.

　　When the old man was young, he loved to eat commander Kay’s fresh milk cake. When he was old, he was sick and couldn’t eat it. Knowing this story, Zhang Yuan painted the old man’s favorite cake, colorful flowers, strawberries, cherries, yellow peaches and other fruits, and there was a bow next to the cake. I didn’t expect this to become a spiritual sustenance for the elderly! It turns out that the old man’s daughter now lives abroad, and the old man often ties a bow to his daughter’s braid when he is young.

　　"The old people who live in nursing homes are most looking forward to the companionship of their loved ones and the visits of their children." Zhang Yuan said. Li Nainai’s son is very busy at work. The old man doesn’t talk, but he often stares at his mobile phone. Zhang Yuan made two cards for her, one with a cartoon image of her son and the other with a photo of Li Nainai. When the old man received the card, he cried with joy and kept saying, "Like! Really like! " The old man put the card on the bed and said that he missed his son. Looking at the card gave him comfort and sustenance.

　　Grandpa Chen has lost his language function because of a cerebral infarction, and sometimes he is not conscious, but as long as his wife comes, he will try his best to support himself and see that their feelings are very good. But his wife is too old to come every day. Grandpa Chen often asks the nurse to call her, and then tries to get close to the receiver and listen to her voice.

　　The sincere feelings of the old people moved Zhang Yuan and her colleagues. Zhang Yuan specially posted a photo of the old couple on his painting, painted the appearance of the head nurse calling, and wrote "Hold your hand and grow old with your son".

　　During more than five years in Hudong Nursing Home, Zhang Yuan gave about 200 paintings to his grandparents. "Behind every painting, there is a story, a sustenance and a desire." She said so.

　　The problem of providing for the aged comes to the fore, and the "post-90 s" holds up everyone’s tomorrow

　　"Chaoyang" guards the "sunset", and such a warm-hearted picture is staged every day in Hudong Nursing Home for the Aged. This is not a microcosm of the social pension proposition.

　　Shao Guihua is 86 years old, and his wife, Xu Zhengtai, is 91 years old. Because of cerebral infarction, he is paralyzed and can’t take care of himself. In January 2016, the old man first lived in Hudong Senior Care Home.

　　As the saying goes, the golden nest and the silver nest are not as good as their own grass nest. When their wife is sick, she has to live in a nursing home. Shao Guihua has concerns. When she sees that most of them are post-90 s nurses, she even drums. "If not, go home."

　　What she didn’t expect was that it took only half a year from "trying to live" to "staying" and now "loving to live". She said that the sincere help of nurses made her feel at home, what’s more, she really couldn’t take care of it herself — — — She is also an old man who is running for nine.

　　"When the families of the patients we are facing are already old people, we know very well that the pace of an aging society is getting closer and closer." "How can 200 beds explore a better and more realistic pension model?" In Hudong Nursing Home for the Aged, the reporter heard such thoughts.

　　As the only public nursing institution for the aged in Yangpu District, Hudong Geriatric Nursing Home is currently exploring "2+1" (second-class hospital+first-class hospital), "combination of medical care and nursing" and other new nursing modes for the aged, including remote nursing and home-based care.

　　Everyone will grow old. In the future, it will not only be the "post-90s" but also the "post-90s" and "post-10th" who will take care of the elderly. Now, every post-90s is not only the sunset today, but also our hope for tomorrow. (Reporter Tang Wenjia)

CCTV News:As the summer movie file continues to heat up, cinemas around the country have also ushered in the peak of watching movies. I don’t know if you have noticed when buying movie tickets. Nowadays, there are different movie theaters to choose from, such as IMAX Hall, Dolby Panorama Hall, CINITY Hall and so on. Among them, CINITY, a domestic film screening system with China’s core independent intellectual property rights, has become the first choice for many viewers in this summer file.

In Shanghai CMG Media Studio, CINITY Cinema has become the first choice for many audiences to watch movies.

In Xinming Cinema in Chengdu, Sichuan Province, the first CINITY LED curved film screen in China, which was officially put into use at the beginning of this year, has been upgraded in summer by virtue of the 16-meter-wide curved CINITY LED film screen, the arc-shaped embracing design and the high-brightness and high-contrast image quality effect brought by LED self-luminous technology.　

State-owned independent brands help improve the film experience.

At present, CINITY and CINITY LED projection systems of China Film have been gradually recognized and favored by domestic and foreign film industries.So, what are CINITY and CINITY LED? What kind of scientific and technological power did they use to enhance the audience’s viewing experience? Get to know each other together.

CINITY system combines the high and new technologies of 4K, 3D, high brightness, high frame rate, high dynamic range, wide color gamut and immersive sound, which can not only present ultra-high resolution pictures, but also provide surround sound effect.

Wu Ting, manager of CMG Media Studio Management Department,Compared with the traditional 2D movie theater, the brightness of the film is 2 to 3 times higher, and at the same time, it can present more picture details, making the film look more delicate and richer. Through the extremely accurate positioning of the sound source and the changing process, the audience can accurately and clearly feel the changes in the sound location, frequency and sound size, and completely immerse themselves in the sound and scene story of the film.

CINITY LED curved film screen is the world’s first cinema LED projection system supporting 4K/120 frame high format.

In the early days of film development, the frame rate of film movies was 24 frames per second, that is, 24 pictures were played per second. However, with the development of technology, the emergence of digital movies has made people’s requirements for film frame rate have also improved. CINITY’s 4K/120 frame is also the highest frame rate version in the film and television field.

CINITY LED has adopted all domestic technical solutions and products, breaking the technical barriers in the industry. Its exclusive film plate-making technology ensures the full expression of the unique characteristics of LED projection to the greatest extent, which makes the film present clearer and smoother pictures and richer and more colorful colors, greatly enhancing the immersion of watching movies.

Up to now, CINITY and CINITY LED projection systems have reached 180 screens in China, and 12 systems have been installed in Europe and the United States.

The world’s first transparent LED giant screen appeared in Nanjing.

In May this year, the National Development and Reform Commission and other six ministries and commissions jointly issued the "Implementation Plan for Promoting Equipment Renewal in the Field of Culture and Tourism", pointing out that the large-scale implementation of the cinema LED display system renewal plan will provide viewers with more comfortable, convenient and rich film consumption services.

Not long ago, the world’s first "sound-transmitting LED giant screen" certified by DCI took the lead in a cinema in Nanjing, providing viewers with better film consumption services.

In the LED giant screen hall of a cinema in Nanjing, the documentary film "Earth Pulsation: Extreme Survival" is being shown.

This transparent LED movie screen is 20.48 meters wide and 10.8 meters high, supports 4K ultra-high definition resolution, and has a high refresh rate of 96 frames, which is four times that of the traditional projection screen. In addition, relying on the unique module perforation design of the product, the large screen puts the main channel audio back, and the sound cavity is realized through the structure of LED box.Ensure the sound transmission effect of the sound.

The upgrade of the screen has also brought a win-win situation for the cinema.

Domestic film projection systems are exported overseas.

At present, the domestic film projection system has broken the monopoly position of foreign countries on the core technology of digital movies.Not only in the domestic market, but also exported to overseas.

This screen showing movies is the HeyLED movie screen independently developed by China.

Chen Weijun, general manager of Shenzhen Times Huaying Technology Co., Ltd. introduced,Its brightness can reach 5 to 10 times that of the original projector, and the contrast ratio of ordinary movies is about 300: 1, but the LED can achieve more than 30,000: 1, so its black place is pure black, the bright place will be very bright, and the details of the bright and dark parts of the movie will be better restored.

This 10-meter-wide LED movie screen has more than 110 boxes, consisting of more than 2.3 million LED light beads, covering the entire light-emitting surface. When a movie is shown, according to the different brightness and color of the played image in different positions, some LED beads will be made to glow, and the rest of the LEDs will not glow at all, thus showing "white" and "black" close to the real world.

At present, HeyLED is not only widely used in cinemas in major cities in China, but also exported to the United States, the United Arab Emirates, Romania and other countries. This is the first time that China’s self-developed LED digital film projection system has been exported overseas.

From making brands to setting standards, the influence of China films has increased.

At present, China has become the country with the largest number of advanced LED film projection system manufacturers and cinemas. There are 18 manufacturers of global LED film projection system that have passed DCI certification, among which 13 are from China.

In addition, China has also actively participated in the formulation of international standards, from branding to setting standards, so that the influence of China’s film industry continues to increase.

In addition to continuous breakthroughs in independent research and development of projection technology, the first film ISO international standard "Technical Requirements and Measurement Methods for Stereoscopic Projection of Digital Cinema" led by China Academy of Film Science and Technology has been officially released recently.

The release of this international standard has filled the gap in China’s film international standard, and also enhanced the international discourse power of China’s film technical standard.

Dong Qiangguo, deputy director of China Film Science and Technology Research Institute, introduced that there is one (in the industry)unifiedGlobal internationalSpecification, "Technical Requirements and Measurement Methods for Stereoscopic Projection of Digital Cinema" is a global industry technical specification for the first time led by China, and it has also won the dominance for domestic film equipment to enter the international market and participate in international competition.

　　There is an impressive line in the TV series Nothing But Thirty: "This city is full of dreams and temptations."

　　For ordinary people in big cities, the most intuitive factors to evaluate the happiness of a city are income, resources and urban public services. One fact that cannot be ignored is that these factors are often highly positively related to the size and energy level of a city, that is, the bigger the city, the higher the income of residents, the more resources and opportunities, and the more convenient life.

　　Perhaps this is why many people yearn for big cities. Recently, the "2020 China Census by County" compiled by the Office of the Leading Group for the Seventh National Census in the State Council shows that there are currently 105 big cities in China, including 7 megacities, 14 megacities, 14 type I megacities and 70 type II megacities.

　　Data source: 2020 China Census Data by County.

　　It is worth noting that there are only seven megacities at the top of the pyramid, namely Shanghai, Beijing, Shenzhen, Chongqing, Guangzhou, Chengdu and Tianjin. And who will be the next megacity is particularly interesting.

　　Key factors of urban population size and rating

　　Measuring the size of a city is nothing more than two key indicators, population and area. However, the larger the population and the larger the area of a city, it does not mean that it can be ranked as a super-large or mega-city.

　　In the central and western regions of China, especially in the northwest and southwest, some prefecture-level cities are very large, and some of them are even equivalent to a coastal province. However, due to insufficient population and relative backwardness in economy and urban infrastructure, there is still a big gap from the concept of mega-cities and mega-cities.

　　In some economically developed areas, although some cities give people the impression that they are bustling and crowded, they have not been selected, such as Suzhou, Xiamen, Fuzhou and Ningbo, which are popular metropolises, and they have not been selected as megacities. The reason is simple. To measure whether a city is super-large, super-large or other types, it mainly depends on the urban population, not the permanent population of the city.

　　According to the relevant classification standards in the Notice on Adjusting the Classification Standards of Urban Scale issued by the State Council in 2014, cities are divided into five categories and seven grades according to the number of permanent residents in urban areas: cities with a permanent population of more than 10 million are megacities, and 5 million to 10 million are megacities, while 3 million to 5 million I-type cities and 1 million to 3 million II-type cities are also called megacities.

　　The second mega-cities are Wuhan, Dongguan, Xi ‘an, Hangzhou, Foshan, Nanjing, Shenyang, Qingdao, Jinan, Changsha, Harbin, Zhengzhou, Kunming and Dalian. Most of the permanent residents in these cities have exceeded 10 million, and Zhengzhou, the highest city, has reached 12.6 million. However, due to the large rural population and county population in these cities, the urban population is still between 5 million and 10 million.

　　Take Suzhou as an example. In 2021, it ranked sixth in the country with a GDP of 2.27 trillion yuan, with a permanent population of nearly 13 million, but the urban population was only about 4 million. The reason behind this is that Suzhou’s counties and even towns are very developed, with a large population. For example, Kunshan, a county-level city, has a GDP of 474.81 billion yuan and a population of over 2 million in 2021. So that the population of Suzhou city is counted, but it seems to have a small proportion.

　　In addition, there are some cities with relatively developed economy and society, which are small in size and belong to "short and pithy". For example, Xiamen, as a sub-provincial city, is considered qualified in terms of administrative level, reputation and per capita GDP, but Xiamen has the smallest land area among the first-and second-tier cities in China, with only 1,700.61 square kilometers and a permanent population of only 5.28 million.

　　Therefore, for this list, we can’t be too "based on this", and the size of the city does not lie in its area and population.

　　Popular candidate cities: Wuhan, Dongguan and Xi ‘an.

　　Among the 14 mega-cities, Wuhan (9.953 million), Dongguan (9.5576 million) and Xi ‘an (9.2837 million) are the top three cities with an urban population of over 9 million. In other words, the next mega-city is likely to be born among these three cities.

　　Judging from the current population of these three cities, Wuhan is only 47,000 people away from the threshold of 10 million megacities. If there are no accidents, Wuhan will become the next megacity.

　　Although according to the data of the Seventh Five-Year Plan, the resident population of Wuhan is 12.3265 million, which is less than that of Zhengzhou’s 12.6006 million. The total population of Wuhan ranks second in central China and eleventh in China. However, the position of "the most populous city in central China" was replaced by Zhengzhou, largely because of the impact of the epidemic.

　　In fact, the permanent population and urban population in Wuhan are likely to be underestimated. According to the Statistical Bulletin of Wuhan National Economic and Social Development in 2021, the permanent population of Wuhan reached 13,648,900 at the end of 2021, an increase of 1,201,200 over the end of last year. The annual increment of more than one million shows that the permanent population of Wuhan has begun to return sharply, and it is showing a blowout trend.

　　In addition, 1.73 million young people have chosen to stay in Wuhan since the implementation of the "Million College Students Studying in China for Entrepreneurship and Employment Project" in Wuhan in 2017. According to public data, in 2021 alone, there were 345,000 college students studying in Wuhan, among whom the number of fresh graduates studying in Han universities increased by 9.4% compared with 2020.

　　In addition to Wuhan, Dongguan, with the second largest population in megacities, is also a strong contender for megacities. At present, the built-up area of Dongguan has reached 1,194.31 square kilometers, which has reached the level of a megacity. In terms of the key indicator of urban population, in 2021, the permanent population of Dongguan reached 10.4667 million, breaking through the 10 million mark for the first time. Among them, the urban population reached 9,557,600.

　　Judging from the urbanization rate (urban population/total population), the urbanization level of Dongguan has reached 91%, which is the highest among the three cities.

　　Besides, Dongguan is still a very young city, with only 5.47% of the population over 60 years old. In recent years, the attraction of Dongguan has been continuously enhanced. According to the report released by relevant institutions, the talent attraction index of Dongguan ranked 16th among 100 cities in 2022, up 7 places from last year’s national ranking.

　　Following Wuhan and Dongguan, the urban population of Xi ‘an also exceeds 9 million, but it is nearly 800,000 people short of the threshold of 10 million. In 2021, the number of permanent residents in Xi ‘an will increase by 210,100. Even if these incremental populations are all urban population, it is still difficult for Xi ‘an to exceed 10 million in a short time.

　　Urban energy level is related to resource allocation, but the purpose is always people.

　　It is said that population is an important indicator reflecting the attractiveness, vitality and strength of a city. Under the background of urbanization in China, whoever has more population will win the initiative in the new round of urban competition.

　　Correspondingly, the promotion of urban energy level not only means that the attractiveness of the city is strengthened, but also means that more resources can be obtained.

　　Taking the urban planning and construction of subway as an example, according to the standards issued by the relevant state departments before, the application for subway needs to meet three conditions: the general budget revenue of local finance is above 10 billion yuan, the gross domestic product is above 100 billion yuan, and the urban population is above 3 million people.

　　It is not difficult to find that the requirement of applying for the subway for urban population is based on the urban population. It is also easy to understand that only when the urban population is large enough, the actual utilization rate of the subway will be high, the per capita construction and operation costs will not be so great, and the social benefits will be greater.

　　Not only the subway, but also from the efficiency of economic development, the higher the urban energy level is, the better the labor productivity is, and the greater the urban resource utilization efficiency is. Just like the innovation resources in the United States are concentrated in the metropolitan areas such as Silicon Valley, Los Angeles and new york, this is a universal law that is applicable all over the world.

　　Of course, once again, to measure the size of a city, we can’t just look at the population, and we can’t do without the comprehensive strength of economy, science and technology, trade, education, transportation, medical care and other fields. Those cities that have yet to be advanced need to "choose the good ones and follow them" in comparison with the top cities to comprehensively improve their soft and hard strength.

　　The size of the city, in the final analysis, should be implemented in the vital interests and actual feelings of every citizen. Let the citizens benefit from the development of the city, and have sufficient conditions to pursue the lofty ideals of life and run a happy family life. This is the pride of a city.

　　Poster design Zhou Huan

　　At 4 o’clock on May 16th, Russian President Vladimir Putin arrived in Beijing by special plane for a state visit to China.

　　This is Putin’s first foreign visit since he officially took office as the new Russian president. It is also his second visit to China after attending the third Belt and Road International Cooperation Summit Forum in China last October. Follow the "frontline of great power diplomacy" and go to the scene to meet President Putin!

　　Producer: Shen Yong Gong Xuehui

　　Planning Shi Wei Wang Pengfei

　　Director Vagrancy.

　　Camera, Jiang Yi Ling Feng