井控培训对工人的具体要求是能及时发现溢流，正确实施关井操作，掌握井控装备的安装使用等。
参考答案：对
We want to know he will come back, as we are worried about his safety.
A．how often
B．how soon
C．how much
D．how long
在脚手架上进行电、气焊作业时，应有（）并配备足够消防器材和专人监护。
