问题 单项选择题

电务维修机时钟误差超过()必须进行调整。

A、1min

B、3min

C、5min

D、10min

答案

参考答案:C

阅读理解
[ ]

A. buys a new one

B. becomes a great scientist

C. still wears the old clothes

D. Both B and C

5. The title of the story should be ______.

[ ]

A. Einstein and His Friend

B. Einstein and His Old Coat

C. A Famous Scientist—Einstein

D. A Day of Einstein

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