用同样配合比的混凝土拌和物做成两种不同尺寸的立方体混凝土试块,试压时大尺寸的试块破坏荷载大,故其强度高;小尺寸试块的破坏荷载小,故其强度低。()
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砂率是水泥混凝土中砂子用量与石子用量之比的百分数。()
A. 正确
B. 错误
In the sentence“The Romans usually sold in this way the spoilg taken in war.”the word“spoils”most probably means______.
A. useless goods
B. spears
C. various kinds of food
D. property taken from the enemy