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【简答题】
三相异步电机的定子铁心片间涂 。 A. 绝缘漆
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举一反三
【单选题】It’s hard to finish the work in a day. You’d better ____ your friends to help you.
A.
call for
B.
call on
C.
call at
D.
call up
【单选题】－ Why weren’t you at the meeting? － I ________ for a long distance call from my sister in Americ
A.
23．- Why weren’t you at the meeting? - I ________ for a long distance call from my sister in America. A．was waited
B.
was waiting
C.
has waited
D.
have been waiting
【单选题】I would appreciate ______ back this afternoon. [ ]
A.
you to call
B.
your calling
C.
you call
D.
you are calling
【简答题】疫苗接种反应及处理方法有哪些?
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