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單項(xiàng)選擇題

They should take care of（錨）（）to ensure that they are in normal condition.

A. anchors
B. anchor ball
C. anchor gear
D. anchor ring

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單項(xiàng)選擇題

Take down （）(G旗).

A.Flag“H”
B.Flag“G”
C.Flag“Q”
D.Flag

單項(xiàng)選擇題

A （）(救生圈) should be located on the gangway.

A.life-jacket
B.life-raft
C.life-buoy
D.life-boat

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