单项选择题
In order to retrieve an inflatable life raft and place it on deck，you should heave on the（）.
A.lifelines B.righting strap C.sea anchor D.towing bridle
单项选择题 In determining the scope of cable to be used when anchoring，what would NOT be considered?（）.
单项选择题 Immersion suits must be stowed（）.
单项选择题 If you were to pass a stopper on a wire rope，what should the stopper be made of?（）
