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【多选题】
对于受轴向变载荷的紧螺栓联接，在限定螺栓总拉力的条件下，提高螺栓疲劳强度的有效措施有（）。A.
增加螺栓刚度
B.
减少螺栓刚度
C.
增加被联接件的刚度
D.
同时增加螺栓和被联接件的刚度
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举一反三
【单选题】He has made another wonderful discovery, ______ of great importance to science.
A.
which I think it is
B.
of which I think it is
C.
I think which is
D.
which I think is
【单选题】He has made another wonderful discovery, ______ of great importance to science and man.
A.
which I think it is
B.
which I think is
C.
of which I think it is
D.
I think which is
【简答题】A．He is dry and boring. B．He is wonderful. C．He knows his subject well. D．He has a sense of humor.
【单选题】He has made another wonderful discovery, _____ I think is of great importance to science. [ ]
A.
which
B.
what
C.
when
D.
that
【单选题】He has made another wonderful discovery, ______of great importance to science and man.
A.
which I think is
B.
which I think it is
C.
of which I think it is
D.
I think which is
【单选题】#print("Test") print("abc") #print("xyz") 程序输出:
A.
abc xyz
B.
Test abc xyz
C.
abc
D.
Test abc xyz
【单选题】―James Blunt is my favourite singer. He has made _____ wonderful music. ―But I’m afraid he isn’t liked by ______.
A.
so, everyone
B.
such, anyone
C.
such, everyone
D.
so, someone
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