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【判断题】
为避免金属热胀冷缩造成的危害,桥梁的一端要做成活动铰链支座 。A.
正确
B.
错误
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举一反三
【简答题】设水的体积压缩系数为 m2/N。当水所受压强等温增加 时,其密度将增加 。
【单选题】设水的体积压缩系数 =5 × 10 -10 m 2 /N 。当水所受压强等温增加 2 × 10 7 Pa 时,其密度将增加( )
A.
2.5%
B.
0.4%
C.
0.8%
D.
1%
【单选题】She ______ television. I don't know why she doesn't do something more active.
A.
always watches
B.
has always watched
C.
has always been watching
D.
is always watching
【单选题】Yes, I know Emily doesn't go out much, but you can hardly blame her. She doesn't go out because she wants to study.
A.
A causal statement is used as a premise.
B.
A causal statement is used as a conclusion.
C.
A causal statement stands by itself as an unsupported claim.
【单选题】I know, she doesn't have any sisters.
A.
As long as
B.
As far as
C.
Although
D.
Even if
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