题目内容

People having traveled from China's Wuhan are required to place themselves ______________at home for 14 days.

A. under medical observation
B. medical care
C. operation

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The current case ______on the Chinese mainland has dropped to 2 percent,it means only 2 confirmed cases will be die in 100.

A. survival rate
B. infection rate
C. fatality rate

Can children still get__________in the near future?

A. virus
B. vaccine
C. value

Washing your hands frequently is the most effective way to protect people from _________.

A. virus
B. water
C. sun

This diseaseis spread by __________.

A. water transmission
B. wind transmission
C. droplet transmission