Letter “Q” means “（）”.

In anchor orders, “Up and down” means “（）”.

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“Single up forward to headline and spring!” means “ （）”.

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Letter “H” means“（）”.

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Which letter means that oil-spilling has happened?（）

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（）fore and aft decks and prepare for sea.

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Rig the lifeboat ladder and safety net and report.（）

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Put on （）(艇底塞) and hand the fender and the buoy.

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（）are for radiators and pipes and for the ship’s funnel.

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Put in boat plug and hand the fender and the puoy.（）

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