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【简答题】
对于承受变载荷的受拉螺栓连接，其应满足的强度条件为______，______；在工作载荷和残余预紧力不变的情况下，通过______或______可以达到减小应力幅的目的。
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反馈参考答案：
举一反三
【简答题】2 经济型数控车床的电动机驱动的伺服系统是( )伺服系统。
【简答题】The author is an American novelist and poet best known as the author of the novel ( ).
【单选题】Where in the passage does the author mention leaving valuables in view is an invitation to the criminals?
A.
The first paragraph.
B.
The second paragraph.
C.
The third paragraph.
D.
The last paragraph.
【单选题】The author of the text is most probably of the opinion that _____.
A.
the sea is an inexhaustible resource of food supply.
B.
the shortage of food supply mainly results from unrestricted population growth.
C.
the inadequate food supply is chiefly caused by the negligence in exploration of the sea.
D.
it is the population projects, rather than the development of sea resources, that can improve the nutritional conditions of mankind.
【单选题】______Miller Anderson is an author of more than 8 novels, the forty-year-old writer has never enjoyed much fame.
A.
Nevertheless
B.
Furthermore
C.
In spite of
D.
Although
【判断题】There is an international marriage between the author and her husband. The author is a Chinese, while her husband is a Canadian.
A.
正确
B.
错误
【简答题】_________ is the way an author or an actor describes or shows what a character is like.
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