People's understanding of immunity started from infectious diseases and anti-infection immunity.
举一反三
- After the epidemic infection of infectious diseases, specific immunity is obtained, which increases the immune population and reduces the susceptibility of the population.
- The basic features of infectious disease are A: There are infectivity, pathogen, epidemic, immunity. B: There are infectivity, patients, immunity, epidemic. C: There are source of infection, route of transmission, susceptibility, immunity. D: There are infectivity, epidemic, endemic, relapse. E: There are pathogen, reinfection, epidemic, immunity.
- According to Aleem Walji, the company"s first project is to （） A: set up a new system to warn people of infectious diseases B: cure patients of infectious diseases C: identify the causes of infectious diseases D: find out where infectious diseases are developing
- 2. According to Aleem Walji, the company’s first project is to ________. A: set up a new system to warn people of infectious diseases B: find out where infectious diseases develop C: identify the causes of infectious diseases D: cure patients of infectious diseases
- Passage2 Questions 19 to 21 are based on the passage you have just<br/>heard. A: Strengthening people's immunity to infection. B: Better understanding patients' immune system. C: Helping improve old people's health conditions. D: Further reducing old patients' medical expenses.