可用于大跨度屋盖的结构形式是()。
A.钢筋混凝土梁;
B.屋架;
C.钢网架;
D.薄壳结构;
E.悬索结构;
参考答案:B, C, D, E
______ is ameasurable, verifiable work poduct such as specification, feasibility study report, detail document, or working prototype.
A.Deliverable
B.Project charter
C.Earned value
D.Milestone
简述我国古建筑群的布局规律及其体现的观念。