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【单选题】
5-13．用 提高带传动传递的功率是不合适的。A.
适当增 加 初拉力 F 0
B.
增大中 心 距 a
C.
增加带 轮 表面粗糙度
D.
增大小带轮基准直径 dd
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反馈参考答案：
举一反三
【单选题】Generally, you should avoid business over a meal until your host gives a signal
A.
talk about
B.
talking about
C.
to talk about
D.
talked about
【单选题】Generally speaking, you should expect to find low atmospheric pressure prevailing in the earth’s ______.
A.
equatorial area
B.
polar regions
C.
mid-latitudes
D.
All of the above
【单选题】Generally,you should avoid ____business over a meal until your gives a signal.
A.
talk about
B.
talking about
C.
to talk about
D.
talked about
【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
【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
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