单项选择题
A.carbon dioxide B.dry chemical C.foam (stored-pressure type) D.water (cartridge-operated)
What should be used to steer an open lifeboat if the ru...
单项选择题What should be used to steer an open lifeboat if the rudder becomes lost or damaged?（）
A.Sea anchor B.Steering oar C.Spare rudder D.Daggerboard
Vessel’s provisions refer to（）of the vessel.A.fuel oilB...
单项选择题Vessel’s provisions refer to（）of the vessel.
A.fuel oil B.vegetables and food C.spare parts on board D.ballast water
To clean a dirty fiber towing hawser used in ocean towi...
单项选择题To clean a dirty fiber towing hawser used in ocean towing，you should（）.
A.use lye or other mild detergent B.wash it with fresh water，dry and store it C.wash it with salt water D.use cleaning fluid on nylon，dacron and other synthetic lines
