试题与答案

---I think you are outgoing . ---Yes, bu

题型:选择题

题目:

---I think you are outgoing .

---Yes, but I think Jenny is   ___  outgoing than me.

A.a little

B.much

C.much more

D.very

答案:

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答案:C考点:分析:题中导体与磁场垂直,根据导体切割电动势公式E=Blv求出感应电动势,由闭合电路欧姆定律求出感应电流.解答:解:由于导体与磁场垂直,得   由题E="Blv=B" d/ sinθv=" Bdv/" sinθ 则...

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