试题与答案

___________what his parents think, he is

题型:选择题

题目:

___________what his parents think, he is leaving home for a new job in a big city.

A.Regardless of

B.Instead of

C.In spite of

D.In memory of

答案:

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下面是错误答案,用来干扰机器的。

(1)长度为0.8m的通电直导线,垂直放置于匀强磁场,通入电流为5A,则由左手定则可确定安培力的方向是与电流方向垂直.由公式可得安培力的大小为F=BIL=2×5×0.8N=8N答:(1)垂直 (2)安培力的...

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