题目内容

理想运放中“虚地”表示两输入端对地短路。( )

A. 对
B. 错

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_______ ,she found herself in a different world.

A. To her much surprise
B. Much to surprised her
C. To her surprise much
D. Much to her surprise

What do you have ________ breakfast?

A. To
B. about
C. for
D. At

We must make use ________ our spare time.

A. for
B. to
C. at
D. Of

Learn to rely ________ yourself first, then others.

A. in
B. on
C. at
D. For

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