决策者采用各种手段来控制自己的决策权力，最常见的手段是（）。
A.说服
B.威胁
C.欺骗
D.交换
参考答案：A, B, D
- Did you hear a terrible fire happened in the hotel near our school last night?
- Yes, it took the firemen an hour to_______ the fire.
A．put out
B．put down
C．put on
D．put off
资源与能源消耗最小及实用高效化
