题目内容

We could take on extra staff ----that's one (possible) ____________.

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To everyone's surprise, his (predict) ____________ of the severe storm came true.

If you tell him what happened, I'm sure he'll understand----he's a (reason) ___________ man.

χ为很大的正数,在较弱磁场作用下可以产生很大的磁化强度,这种物质是()

A. 抗磁体
B. 顺磁体
C. 铁磁体
D. 反铁磁体

下列属于固体电阻产生的机制( )

A. 声子散射
B. 电子的热振动
C. 晶体点阵的完整性被破坏
D. 以上都是

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