流水施工的时间参数包括( )
A. 施工过程
B. 流水节拍
C. 施工层
D. 施工段
E. 流水步距
建设工程项目施工成本有( )所组成。
A. 直接成本
B. 固定成本
C. 可变成本
D. 间接成本
E. 变动成本
The headmaster will not permit the change in the course, nor ______ it a thought.
A. does he even given
B. he even gives
C. will he even give
D. he will even given
Hardly ________ when she ________ someone knocking at the door.
A. did she sit, heard
B. did she sit, had heard
C. had she sat, had heard
D. had she sat, heard