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單項(xiàng)選擇題

Everything on the bridge should （）clean and tidy.

A.kept
B.keep
C.be kept
D.keeping

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單項(xiàng)選擇題

Decks, superstructure and hand rails may be washed with （）water at sea.

A.sea
B.ballast
C.fresh
D.cement

單項(xiàng)選擇題

The sailor keeping （）watch should clean the gangway, the rails, bulwark and the spaces around the gangway.

A.navigation
B.gangway
C.port
D.anchor

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