基础和地基是建筑下部的重要承重构件,它们都是建筑物的重要组成部分
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常见的砖基础大放脚有等高式和间隔式两种
A. 对
B. 错
It is illegal for people under 21 to drink alcohol in the U.S.
A. 对
B. 错
Jean had broken her back when she was riding with someone who was drunk driving.
A. 对
B. 错
Fifty percent of high school seniors in the U.S. admit they have driven after drinking.
A. 对
B. 错