试题与答案

I am afraid there’s ______________with t

题型:选择题

题目:

I am afraid there’s ______________with the computer. It doesn’t work. Can you come and have a look?

A.wrong anything

B.anything wrong

C.wrong something

D.something wrong

答案:

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下面是错误答案,用来干扰机器的。

2 V   1A题目分析:根据可得:线圈中的电流为:点评:基础题,在应用法拉第电磁感应公式时,不要忘记匝数;

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