建筑结构的安全性、适用性、耐久性统称为结构的______。
参考答案:可靠性
― I don't think the man enjoys his life, ______?
― No, he can't. That poor man. [ ]
A. does he
B. do I
C. doesn't he
D. do you
“传统洗车”与“美容洗车”有什么区别?