单项选择题
Which portable fire extinguisher is normally recharged in a shore facility?（）
A.Dry chemical (cartridge-operated) B.Water (cartridge-operated) C.Water (pump tank) D.Carbon dioxide
单项选择题 Which item is NOT included in the fireman’s outfit on a cargo vessel?（）
单项选择题 Which is a disadvantage of Halon as a fire extinguishing medium?（）
单项选择题 Which firefighting method is an example of an indirect attack on a fire?（）.
