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【单选题】
从动件的运动规律决定了凸轮的A.
轮廓曲线
B.
转速
C.
形状
D.
运动
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皮皮学刷刷变学霸
举一反三
【单选题】— Listen! What’s the noise? — My brother ______ the program of the World Cup in the sitting room.
A.
watches
B.
has watched
C.
is watching
D.
watched
【单选题】We have made good preparation for the test, so there ____ be any problem with it. [ ]
A.
shouldn't
B.
shan't
C.
mightn't
D.
mustn't
【单选题】He made a good preparation for the job interview, for he couldn't ________ losing the good opportunity.
A.
admit
B.
delay
C.
avoid
D.
risk
【简答题】Some people say that the best preparation for life is learning to be cooperative. Others take the opposite view and say that learning to be competitive is the best preparation. Write a composition of ...
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