单项选择题
Each fireman’s outfit and its spare equipment on a ship must be stowed（）.
A.in a locked cabinet in the machinery space B.in an unlocked cabinet in the machinery space C.in a separate and accessible location D.at a fire hydrant location
单项选择题 Customs officers，upon boarding a vessel desiring entry into one of their port，would inspect which document?（）
单项选择题 Blocks and falls used as lifeboat gear must be designed with a minimum safety factor of（）.
单项选择题 BHP stands for the（）of the main engine.
