题目内容
We want to know whether the drug has an effect _______________ people's health.
|
A.on |
B.to ? |
C.with |
D.in |
【答案】
A
【解析】略
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题目内容
We want to know whether the drug has an effect _______________ people's health.
|
A.on |
B.to ? |
C.with |
D.in |
A
【解析】略