各类油罐区,可燃气体及助燃气体罐区,液化石油气站动火属于特殊用火。
参考答案:错
解析:各类油罐区,可燃气体及助燃气体罐区,液化石油气站动火属于一级用火。
Those _________ may leave the classroom now.
A.whohasfinished
B.whohavefinished
C.havefinished
D.whomhavefinished
目前我国盲的患病率为
A.0.1%~0.3%B.0.5%~0.6%C.0.5%~1.0%D.0.3%~0.5%E.1.0%~1.2%