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【简答题】
平面齿轮机构的特点为轴线(),母体为圆柱体。
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举一反三
【单选题】Generally,you should avoid______businesses over a meal until your gives a signal.
A.
talk about
B.
talking about
C.
to talk about
D.
talk about
【简答题】在G00 程序段中，（ ）值将不起作用
【单选题】Generally,you should avoid ____business over a meal until your manager gives a signal.
A.
talk about
B.
talking about
C.
to talk about
D.
talked about
【单选题】Generally speaking, you should arrive at the airport with plenty time _
A.
spare
B.
spared
C.
to spare
D.
sparing
【单选题】Generally speaking, you should arrive at the airport with plenty of time .
A.
sparing
B.
to spare
C.
spare
D.
spared
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