单层工业厂房的结构中,主要传递水平风荷载的构件是( )。
A.吊车梁B.柱子C.基础D.支撑系统
参考答案:D
The newcomers still don’t know ________ the difficult situation after practicing for 2 months.
A.what to deal with
B.what to do with
C.how to do with
D.how to deal
在经济体系中为什么需要一个货币市场?