合同文件包括在( )中指明的全部文件。
A．合同书
B．合同协议书
C．投标书
D．工程师建议书
参考答案：B
If the building project _____ by the end of this month is delayed, the construction company will be fined. [ ]
A. being completed
B. is completed
C. to be completed
D. completed
水磨石开磨时间以（）为准。
A、水泥初凝时间
B、水泥终凝时间
C、石子不松动
D、石子松动
