How long is the flu patient most contagious after the onset of illness?
A: Within 24 hours
B: 2-3days
C: Within a week
D: Within two weeks
A: Within 24 hours
B: 2-3days
C: Within a week
D: Within two weeks
举一反三
- The video one borrowed must be returned ______. A: within a month B: within two weeks C: within one week D: within five days
- Hong long must the computer repair be done? A: Within the week. B: Within 24 hours. C: Within 14 hours. D: Within 2 days.
- Clustered outbreak of COVID-19 refers to ( ) A: Two or more confirmed cases or asymptomatic infections within 7 days in a small area B: Two or more confirmed cases within 14 days in a small area C: Two or more confirmed cases or asymptomatic infections within 14 days in a small area D: Two or more confirmed cases within 21 days in a small area E: Two or more confirmed cases or asymptomatic infections within 21 days in a small area
- How many people recognized the man in the pictures within 2 days A: [A] 24 . B: 3. C: 640. D: 48.
- Goods will be _________ within 24 hours of your order.