施工采用纵挖式的挖泥船是(  )。

施工采用纵挖式的挖泥船是(  )。A.绞吸式 B.耙吸式 C.链斗式 D.抓扬式

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碾压混凝土坝混凝土压实强度是按照(  )进行控制的。

碾压混凝土坝混凝土压实强度是按照(  )进行控制的。A.钻孔取芯 B.压水试验 C.监测密度 D.碾压试验

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--How______do you visit your parents?--About three times a y

--How______do you visit your parents?--About three times a year.A.much B.long C

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New teaching ways helped the class to be the best.

New teaching ways helped the class to be the best. A.Right. B.Wrong. C.Doesn't

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All the students are very clever since they all have high IQ

All the students are very clever since they all have high IQs. A.Right. B.Wrong

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