单项选择题
Which of the listed fire extinguishers cannot be easily recharged aboard ship?（）
A.Soda acid B.Carbon dioxide C.Dry chemical D.Cartridge-operated Foam
单项选择题 When checking the liquid level in a tank, you should position yourself （）.
单项选择题 The stability of a vessel is normally the greatest when all fuel and water tanks are full because the （）.
单项选择题 Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?（）
