单项选择题
As its temperature rises, the volume of fuel oil in the tanks will （）.
A.remain the same B.increase C.decrease D.none of the above
单项选择题 Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire?（）
单项选择题 In the fire main system, quick cleaning strainers are located at the（）.
单项选择题 Where should muster lists be posted?（）
