–Is Jack in the library?-Maybe. I saw him _________ out wi

–Is Jack in the library?-Maybe. I saw him _________ out with some books just

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水构筑物满水试验时,正确的注水方法是(  )。

水构筑物满水试验时,正确的注水方法是(  )。A.相邻两次注水时间间隔不少于48h B.注水分四次进行,每次注水为设计水深的1/4,水位上升速度每天不超过1m/

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制作方便,补偿能力大,轴向推力小,但占地面积较大的补偿器是(  )。

制作方便,补偿能力大,轴向推力小,但占地面积较大的补偿器是(  )。A.方形补偿器 B.Z形补偿器 C.波形补偿器 D.填料式补偿器

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The woman and her husband _____ in the same company.

The woman and her husband _____ in the same company.A.work B.works C.is working

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-----______ you ______ your dictionary?------No. So I have

-----______ you ______ your dictionary?------No. So I have to buy a new one to

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