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【单选题】
建筑材料的许多性能是通过试验测得的,冲击试验是用来测定材( )。A.
强度
B.
脆性
C.
韧性
D.
弹性
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皮皮学刷刷变学霸
举一反三
【单选题】We managed to reach the top of the mountain, and half an hour later we began to_______.
A.
descend
B.
ascend
C.
decline
D.
plunge
【单选题】. ____ I am concerned, we should be brave and we will reach the top of the hill at last ____ we try our best to climb the hill.
A.
So long as; as long as
B.
As far as; as longer as
C.
So long as; as far as
D.
As far as; as long as
【单选题】We wondered they reach the top of the mountain.
A.
if ; can
B.
which ; could
C.
that ; will
D.
whether ; could
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