框架结构可分为整体式、装配式、装配整体式等。( )
参考答案:对
—I have decided to take the entrance examinations to Qinghua University.
—Wish you ____.
A.a luck
B.a good luck
C.luck
D.a success
在六大营养物质中,能为生命活动提供能量的是 。