题目内容

一均匀带电的空心橡皮球,在吹大的过程中始终维持球状,球内任意点的场强变大

A. 对
B. 错

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Our school is ()than theirs.

A. large
B. larger

Tom is as ( ) as Mike.

A. tall
B. taller

There is a lot of ( ) today.

A. wind
B. windy

It is ()today

A. rainy
B. rain
C. rains

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