题目内容

There are two key factors behind this (trend).

A. 迟到
B. 鼓励
C. 称赞
D. 趋势

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From a (practical) point of view, it isn't a good place to live.

A. 老旧的
B. 传统的
C. 信任的
D. 实际的

(Overall), this is a very useful book.

A. 相对的
B. 大概率
C. 总体上
D. 无趣的

He was enjoying his new-found ( ).

A. sleep
B. freedom
C. engry
D. tired

理想运放两个输入端电流均等于零,相当于输入端断开,称为( )。

A. 虚短
B. 虚断
C. 断路

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