George applied for the position three times ______ he finall

George applied for the position three times ______ he finally got it. A.before B

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_____ of water makes Death Valley a desert, but it is by no

_____ of water makes Death Valley a desert, but it is by no means devoid.A.Lacki

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The great use of school education is not so much to teach yo

The great use of school education is not so much to teach you things _____ to te

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对检验不合格的焊缝必须返修至合格,返修次数不得大于(  )次。

对检验不合格的焊缝必须返修至合格,返修次数不得大于(  )次。A.1 B.2 C.3 D.4

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喷射混凝土施工时,喷射作业分段、分层进行.喷射顺序(  )。

喷射混凝土施工时,喷射作业分段、分层进行.喷射顺序(  )。A.由上而下 B.由右而左 C.由左而有 D.由下而上

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