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A. exemplify B. demonstrate C. improve D. verif

A. exemplify
B. demonstrate
C. improve
D. verify

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A. To notify her of her promotion. B. To inform. her of new equipment

A. To notify her of her promotion.
B. To inform. her of new equipment.
C. To inquire about office problems.
D. To discuss meetings of the board.

A. accused B. convictedC. chargedD. blamed

A. accused
B. convicted
C. charged
D. blamed

转速单闭环直流调速系统中,不能随心所欲地控制电流和转矩的动态过程。 ( )

经济周期的四个阶段是指()。

A. 繁荣、复苏、衰退、萧条
B. 繁荣、衰退、萧条、复苏
C. 繁荣、萧条、崩溃、衰退
D. 繁荣、崩溃、萧条、衰退

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