多项选择题
以下()属于以受弯为主的结构。
A.梁
B.拱
C.刚架
D.排架
以下()属于以受弯为主的结构。
A.梁
B.拱
C.刚架
D.排架
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单项选择题
I wish I could ________ and relive my schooldays; I regret not having tried harder and passed more exams.( )
I wish I could ________ and relive my schooldays; I regret not having tried harder and passed more exams.( )
A.put the clock back
B.do without
C.cut off
D.put across