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【单选题】
在铰链四杆机构中,若两连架杆一个作整圈转动,另一个只能来回摆动,则称为__。A.
曲柄摇杆机构
B.
双摇杆机构
C.
双曲柄机构
D.
曲柄滑块机构
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反馈参考答案：
举一反三
【简答题】对于以加快产品上市速度为目的的云构建,企业可以通过打造()来实现云环境下的产品开发测试过程。
【多选题】下列危险品以及进入航空器的途径,配对正确的有哪些( ):
A.
航空燃油--航空器自身
B.
旅客行李--航空货运
C.
自用手机--航空客运
D.
酒精饮品--客舱服务
【单选题】While the government says there is a(n) ________supply of houses, prices of apartments have been going up these years. [ ]
A.
parallel
B.
absent
C.
abundant
D.
short
【多选题】What kind of sources can books provide?
A.
Historical information.
B.
Summaries of research.
C.
Updated information.
D.
Credible information
【单选题】---There______ a concert this evening. ---Yes.Exciting news.
A.
are going to be
B.
is going to be
C.
is going to have
D.
will have
【简答题】钙质珊瑚CaCO3占总体含量的82~87%,其中红珊瑚以________为主、白珊瑚以________为主。
【简答题】As your textbook explains, what kind of plagiarism is a speaker who assembles a speech by copying word for word from two or three sources committing?A. global B. patchwork C. incremental D. scientific
【单选题】There ______ a sports meeting in our school next week.
A.
will be
B.
will have
C.
are going to be
D.
is going to have
【单选题】There _____ an English evening party next Saturday.
A.
is going to be
B.
will have
C.
is to have
D.
is going to have
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