A.clean B.worn C.beautiful D.good
单项选择题The sailors should show the relevant ()by day.
A.ladders B.flags C.hands D.lines
单项选择题You should ()the mooring lines according to the changes of draft.
A.adjusted B.adjusting C.adjustment D.adjust
单项选择题Pay more attention to the rising and falling of ().
A.tide B.water C.sea D.wave
单项选择题Please tell the duty AB to lower the ().
A.winch B.radar C.gangway D.pilot ladder
单项选择题When a ship is in port, ()must keep a gangway watch.
A.officers B.crew members C.sailors D.bosun