水闸上游构造中,仅起防冲作用的构造是(  )。

水闸上游构造中,仅起防冲作用的构造是(  )。A.铺盖 B.护底 C.翼墙 D.护坡

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when I got to the cinema, the filmfor half an hour.

when I got to the cinema, the filmfor half an hour.A.started B.have started C.ha

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From the passage we can learn that______.

From the passage we can learn that______.A.FEIFEI is a successful company with

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