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【简答题】
( )的作用只是改变转向并不能改变传动比。
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A.
正确
B.
错误
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正确
B.
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A.
李治
B.
杨坚
C.
李世民
D.
李隆基
【判断题】具有一定有序结构的固态物质就是晶体。
A.
正确
B.
错误
【单选题】The meeting was put off ______ the chairman's illness.
A.
because of
B.
in the front of
C.
in the interests of
D.
in face of
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【单选题】Don't . Become a volunteer today. [     ]
A.
put it off
B.
put off it
C.
put it on
D.
put on it
【单选题】四冲程柴油机连杆承受拉力的时刻是
A.
排气行程
B.
进气行程
C.
压缩行程
D.
作功行程
【单选题】We are in favor of your proposal that the meeting ______. A. B. was put off C. should put off D. is to put off
A.
should be put off
B.
was put off
C.
should  put off
D.
is to  put off
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