three basic links in epidemic process refer to ().
A: The
source of infection
B: Factors of transmission
C: The
route of transmission
D: The susceptible population
E: Transmission
mode
举一反三
- The prevention and control strategybased<br/>on the three links of the epidemic process of infectious diseases<br/>include (). A: Control sources of infection B: Interrupt the route of transmission C: Kill wild animals D: Protect the susceptible population E: Environmental disinfection<br/>判断题
- There was only one peak in the epidemic curve of a disease, and all<br/>cases are concentrated in the common incubation period of the<br/>disease, then the disease transmission mode maybe ( ). A: both<br/>homologous and continuous B: common source epidemic C: mixed type D: human to human E: unable to judge
- 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.
- In order to reduce the influence of transmission elements on<br/>transmission accuracy, () transmission should be adopted. A: Deceleration B: Isokinetic C: variable speed D: Speed up
- Which is not the transmission’s job<br/>__? A: To vary the gear ratio B: To provide the directional control C: To interrupt the engine power to the transmission D: To transmit the power to the<br/>half shaft
内容
- 0
which<br/>is correct about the VR Broadcasting? () A: VR<br/>shooting- splicing and composition- transmission- output B: splicing<br/>and composition- VR shooting- output- transmission C: VR<br/>shooting-transmission- splicing and composition- output D: VR<br/>shooting- splicing and composition- output -transmission
- 1
Insulators are used to insulate between transmission lines and support structures. (<br/>)
- 2
SARS-CoV is primarily transmitted by A: Respiratory transmission B: Sexual activity C: Fecal-oral route D: Insect transmission E: Vertical transmission from mother to child
- 3
( )is<br/>a gadget and provides controlled application of the power. A: engine B: differential C: transmission
- 4
A manual transmission is connected to the engine through the ( <br/>) . A: differential B: belt C: clutch