在狭窄和通风不良的地沟、坑道及密闭容器、舱室中进行气焊、气割作业时,焊炬、割炬应随人进出,严禁放在工作地点。( )
参考答案:对
污水泵房集水池宜装置冲泥和清泥等设施,抽送含有焦油等类的生产污水时,宜有( )设施。
A.过滤
B.除油
C.加热
D.隔油
I'm ______ my new watch. But I can't ______. [ ]
A. looking for; find.
B. finding; look for
C. finding; look at
D. looking at; find