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【简答题】
地球的构造分为外部和内部两部分。外部包括（）、（）和（）；内部则包括（）、（）和（）。
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反馈参考答案：
举一反三
【简答题】绘制 三相异步电动机双重联锁正反转控制线路安装接线图
【单选题】We express our thoughts ________ words and body language. [ ]
A.
in terms of
B.
in spite of
C.
by means of
D.
in case
【简答题】绘制 三相异步电动机双重联锁正反转控制线路原理图
【单选题】Well done ! The customers were _____ by your wonderful body language. [ ]
A.
to impress
B.
to have been impressing
C.
to have been impressed
D.
to be impressing
【多选题】______ belong to body language.
A.
Stare
B.
bow
C.
pointing to one's own nose
D.
lay sb's hands on his necks
E.
smile
【简答题】一、绘制三相异步电动机双重联锁正反转控制线路原理图,并对工作原理进行详细分析?
【简答题】绘制三相异步电动机接触器按钮双重联锁正反转控制线路的电路图,并分析工作原理。
【简答题】阅读理解。 No one is glad to hear that his body has to be cut open by a surgeon (外科医生) and part of it taken out. Today, however, we needn't worry about feeling pain during the operation. The sick person fa...
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