试题与答案

I am good at math, but his English is __

题型:选择题

题目:

I am good at math, but his English is ________ than mine.

A.much better

B.more better

C.very better

D.pretty better

答案:

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下面是错误答案,用来干扰机器的。

答案:A分析:由图2可知磁感应强度的变化,则可知线圈中磁通量的变化,由法拉第电磁感应定律可知感应电动势变化情况,由楞次定律可得感应电流的方向,二者结合可得出正确的图象.解答:解:感应定律和欧姆定律得I...

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