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【单选题】
同步发电机控制屏上有许多仪表,在同步发电机与电网并车合闸时主要观察的仪表是 。A.
频率表
B.
电压表
C.
电流表
D.
同步表
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举一反三
【单选题】After ______ on his couch more than a dozen times, he gave up his attempt to sleep.
A.
he overturned
B.
his having turned over
C.
turning over
D.
turning up
【简答题】A．He put it back on the ground. B．He put it into his own pocket. C．He threw it into a trashcan. D．He gave it to the police.
【简答题】To prepare for the interview, he had put on his best suit and polished his shoes，and now, as he entered the office，he wore a ______ smile on his face． 为了面试，他穿上了最好的衣服，擦亮了皮鞋，现在他走进办公室时，脸上带着动人的微笑。
【单选题】He ______ his textbooks when he left school and never reopened them.
A.
put back
B.
put aside
C.
put down
D.
put off
【简答题】We wish he ______ his overcoat. A) does put on B) had put on C) will put on D) has put on
【单选题】In the sentence " He put the covers over his head to silence his quick breathing. " the infinitive is used as ________.
A.
complement
B.
adverbial of purpose
C.
adverbial of result
D.
attributive
【单选题】He ________ his work to spend more time with his son. [ ]
A.
put down
B.
put aside
C.
put in
D.
put away
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