题目内容

同步电机转子主磁场是直流励磁产生的,电枢反应磁场是交流产生的。

A. 对
B. 错

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同步发电机电枢反应的性质与负载的性质无关。( )

A. 对
B. 错

After all, individual strength is very.

A. limited
B. limiting
C. limitable
D. limitely

The mayor is an important.

A. office
B. officer
C. official
D. officing

Never before have I seen such a film.

A. wondering
B. wonderful
C. wondered
D. wonderous

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