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【单选题】
位膜之上两根拱架中间，起压平、压实绷紧棚膜作用的是（）A.
立柱
B.
C.
拉杆
D.
压杆
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反馈参考答案：
举一反三
【单选题】During the discussion, Mr. Boyd remained silent when asking his opinion.
A.
During the discussion
B.
remained silent
C.
when
D.
asking
【单选题】(During the discussion), Mr. Boyd (remained) (silent) (when asking) his opinion.
A.
During the discussion
B.
remained
C.
silent
D.
when asking
【简答题】Mr. Trump thinks that during an emergency, the schoolchildren should follow the instructions______.
【简答题】三相异步电动机主要由 和 两大部分组成
【单选题】The High Court judge made the announcement ______.
A.
during today's court appearance by Mr. Anwar
B.
during today's news conference
C.
when he met with Mr. Anwar today
D.
after he met with Mr. Anwar today
【简答题】三相异步电动机主要由 和 两部分组成。根据 的结构不同,分为鼠笼式和绕线式电动机。
【单选题】(During the discussion), Mr. White (remained silent) (when) (asking) his opinion.
A.
During the discussion
B.
remained silent
C.
when
D.
asking
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