单项选择题
A. anchor chains B. anchor ball C. anchor gear D. anchor ring
They should take care of（锚）（）to ensure that they are in...
单项选择题They should take care of（锚）（）to ensure that they are in normal condition.
A. anchors B. anchor ball C. anchor gear D. anchor ring
Take down （）(G旗).A.Flag“H”B.Flag“G”C.Flag“Q”D.Flag
单项选择题Take down （）(G旗).
A.Flag“H” B.Flag“G” C.Flag“Q” D.Flag
A （）(救生圈) should be located on the gangway.A.life-jacke...
单项选择题A （）(救生圈) should be located on the gangway.
A.life-jacket B.life-raft C.life-buoy D.life-boat
