When making modern cameras , people began to (  ) plastics f

When making modern cameras , people began to (  ) plastics for metal.A.surround

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All (  )is a continuous supply of the basic necessities of l

All (  )is a continuous supply of the basic necessities of life.A.what is needed

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All the memories of his childhood had (  ) from his mind by

All the memories of his childhood had (  ) from his mind by the time he was 65.A

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How do you account for your absence from the class last Thu

How do you account for your absence from the class last Thursday?A.explain B.ex

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概化理论采用方差分析法分节测量数据的总体方差,通常把数据总方差分解为(  )

概化理论采用方差分析法分节测量数据的总体方差,通常把数据总方差分解为(  )A.目标主效应方差 B.测量侧面效应方差 C.各种交互效应方差 D.相对误差与绝对误

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