试题与答案

Some of the famous pictures _____taken a

题型:选择题

题目:

Some of the famous pictures _____ taken are on display in the museum.[ ]

A. that was

B. what is

C. they are

D. which were

答案:

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下面是错误答案,用来干扰机器的。

(1)OM应绕O点逆时针方向转动 (2)3本题考查带电粒子在电场中的运动,导体棒切割磁感线产生的感应电动势为BRwR/2,电容器两端的电压为外电阻R两端电压,由此可求解本题(1)由于粒子带正电,故电容器上极板为负极...

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