题目内容

如果一个二极管正、反向电阻值都很大,则二极管()状态。

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如果一个二极管正、反向电阻值都很小,则二极管()状态。

I guess Professor Wang hasn’tfinished grading the papers yet. If he had, he would not keep us in_______ .

A.suspense
B.trouble
C.doubt
D.wonder

黑表笔接三极管的基极,红表笔接另两极时,阻值均小为()型三极管。

At the conferenceyesterday, our differences were further_______ .The next step is to work out a solution acceptable to both sides.

A.narrowed down
B.cooled down
C.driven home
D.brought about

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