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【多选题】
通风的一般方法有( )A.
机械吸潮
B.
吸湿剂吸潮
C.
通风散潮
D.
通风散热
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反馈参考答案：
举一反三
【简答题】带传动设计中,为何要限制小带轮的最小基准直径?
【简答题】[A] activity [B] action [C] act [D] acting
【单选题】We are offering you firm________ on the same terms and conditions as the previous contract.
A.
as following
B.
as follow
C.
as is following
D.
as follows
【单选题】We ___________ on it for many hours, but we have not yet reached any conclusion. A. are being worked B. are working C. have been working D. have been worked
A.
are being worked
B.
are working
C.
have been working
D.
have been worked
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