结构的类型跨度不同,其拆模强度不同。对于梁等承重结构,跨度在8m以内时,不低于设计强度等级的()。
A.50%
B.60%
C.75%
D.100%
参考答案:C
Woman: Lots of people enjoy dancing, do youMan: Believe it or not, that’s the last thing I’d ever want to do.Question: What does the man mean().
A. He believes dancing is enjoyable.
B. He definitely does not like dancing.
C. He admires those who dance.
D. He won’t dance until he has done his work.
入境的运输工具应在( )向报关地报检检验检疫机构办理报检手续。
A.提前不少于20天 B.入境前30天C.入境前15天 D.入境前或入境时