建筑安装工程费用由（）构成。
A.直接费、间接费、盈利
B.企业管理费
C.直接费、间接费、利润和税金
D.直接工程费、间接费、利润和税金
参考答案：C
--- Did they attend the opening ceremony?
---They _, but they were late and quit it.
A．would
B．would have
C．didn't
D．will have to
简述砖墙的砌筑过程一般是什么？
