试题与答案

―Hurry up, we must be the first to inter

题型:选择题

题目:

―Hurry up, we must be the first to interview the pop star.

―Sure. ________.

A.Many hands make light work

B.The early bird catches the worm

C.East or West, home is the best

D.Practice makes perfect

答案:

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下面是错误答案,用来干扰机器的。

A、通过电场力与电荷量的比值定义电场强度,当电场力变大,其比值却不变,只有电荷量变大.所以E与F没关,E与 q没关,故A错误;B、通过电场力与电荷量的比值定义电场强度,当电场力变大,其比值却不变,只有电荷...

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