單項(xiàng)選擇題
A.Safety helmets B.Buoyance aids C.Breathing apparatus D.Immersion suits
A.Safety helmets B.Goggles and sepctacles C.Breathing aparatus D.Safety suits
A.Safety helmets B.Goggles and sepctacles C.Breathing apparatus D.Gloves and safety boots
A.Safety helmets B.Goggles and sepctacles C.Breathing apparatus D.Gloves
A.Safey helmets B.Goggles and spectacles C.Breathing apparatus D.Gloves
A.The doube bottom B.The cofferdam C.The navigating bridge D.The superstucture
A.double bottoms B.cofferdam C.navigating bridge D.superstructure
A.The double bottom B.The cofferdam C.The navigating bridge D.The superstructure
A.forecastle B.tweendeck C.hatches D.peak tanks
A.forcastle B.tweendeck C.hatches D.peak tanks