桥梁的基础承担着（）、桥跨结构（桥身）的全部重量以及桥上的可变荷载。
参考答案：桥墩
表示状态的物理量叫（）。
Requirements management is the process of(1),analyzing,tracing,prioritizing and agreeing on requirements and then controlling changes and communicatingto relevant stakeholders.It is a(2) process throughout a project.A requirement is a capability to which a project outcome (product or service) should conform.
空白（1）为（）
A.commu nicating
B.collecting
C.filing
D.documenting
