单项选择题
A.aid turning the ship B.obtain a fine bearing C.increase ship swings to wind or tide D.lighten the stress of anchor chains
A.at anchor and heading into the wind B.backing into the wind C.carrying lee rudder D.necessary to apply a leeway correction to the course
A.crew members using their arms B.crew members using the strong muscles of their legs C.fenders D.No fending is necessary due to the rugged construction of most towing vessels