片帮、冒顶时应预知哪些伤害？（）
A、伤及施工人员
B、砸坏电缆、管路
C、堵塞巷道
D、影响通风
E、砸坏施工用具
参考答案：A, B, C, D, E
--- What are the workers talking about ?
--- They are discussing the idea the old worker ______ at the meeting yesterday.
A．put forward
B．came up
C．set off
D．brought out
社王节
