单项选择题

A．They reveal the seriousness of the problem.
B．They indicate how fast the virus spreads.
C．They tell us what kind of medicine to take.
D．They show our body is fighting the virus.
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单项选择题
After the war, returned male workers were responsible for the total loss of women’’s jobs.
A．Y
B．N
C．NG
单项选择题
What is the author’’s attitude toward high-tech communications equipment
A．Critical.
B．Indifferent.
C．Prejudiced.
D．Positive.
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