单项选择题

There is no risk to public health.()

A.point
B. danger
C. chance
D. hope

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单项选择题

Smoking is not permitted in the office.()

A. probable
B. possible
C. admitted
D. allowed

单项选择题

About one million Americans are diagnosed annually with skin cancer.()

A. every year
B. severely
C. actively
D. every month

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