钢梁的跨度或荷载较小时应优先选用
A.型钢梁
B.组合梁
C.蜂窝梁
D.箱型梁
正确答案是A
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Passage 2 It’s summer time, meaning a lot of people are eating outside while enjoying the sunshine. But if you don’t properly take care of the grill or the food you’re cooking on it, you could wind up makin