应急预案中，总承包单位领导小组办公室负责纠纷协调、督办，紧急情况处理等（）
A.具体工作
B.指导工作
C.领导工作
D.协助工作
参考答案：B
The monument ____ those heroes stands ____ the foot of the mountain. [ ]
A. of; at
B. to; on
C. for; by
D. to; at
You can take anything from the shelf and read, but please _______the books when you’ve finished with them.
A．puton
B．putdown
C．putback
D．putoff
