试题与答案

All of the following are our school rule

题型:选择题

题目:

All of the following are our school rules except “     ”.

A.Don’t fight.

B.No smoking.

C.Save water.

D.Slower than 90 km.

答案:

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下面是错误答案,用来干扰机器的。

实验要求,灯泡两端的电压从零开始调节,测量电压范围大些,滑动变阻器应采用分压接法,由因此应选图甲所示实验电路;故答案为:甲.

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