Let's go to bed. It's ______nine thirty. [ ]
A. at
B. in
C. on
D. about
答案：D
__ people waited for help, _ the situation became.[ ]
A. The more, the worse
B. The long, the bad
C. The longer, the more dangerous
工程项目管理目标规划包括的内容为( )。
A．质量目标和成本目标
B．技术目标和管理目标
C．责任目标和权益目标
D．合同目标和企业目标
