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【简答题】
当带有打滑趋势时，带传动的有效拉力达到最大值，而带传动的最大有效拉力取决于（）、（）、（）三个因素。
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The reason for his being late is _______his bicycle went wrong on the way.
A.
because
B.
that
C.
why
D.
for which
【单选题】Even many years after his divorce, he still couldn’t figure out the reason for his ____ marriage.
A.
to fail
B.
to be failing
C.
failing
D.
failed
【单选题】The reason for his absence from school was ____ he fell ill.
A.
because
B.
why
C.
what
D.
that
【单选题】What did the doctor think was the reason for his trouble?
A.
He has been sitting too much.
B.
He has been working too hard in his office.
C.
He has been watching too much of TV.
D.
He has been eating too much.
【单选题】The reason for his success is ______ he worked very hard.
A.
why
B.
that
C.
whether
D.
how
【单选题】Being late was the reason for his layoff.
A.
denied in
B.
admitted to
C.
erected in
D.
assigned as
【单选题】心室颤动电除颤应首选直流电()
A.
150J非同步电除颤
B.
200-300J同步电除颤
C.
200-300J非同步电除颤
D.
300J同步电除颤
E.
300J非同步电除颤
【单选题】心室颤动电除颤应首选直流电（）
A.
150J非同步除颤
B.
200～300J同步除颤
C.
200～360J非同步除颤
D.
360J同步除颤
E.
360J非同步除颤
【单选题】Which of the following was not the reason for his running away from home?
A.
The money his father gave him was meager.
B.
He did not reach a consesus with his parents on whether to go to college or not
C.
He thought the work on the farm was meaningless and boring.
D.
He was very angry because his father gave him a good beating.
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