單項選擇題

A sea anchor is（）.

A.a heavy anchor with an extra long line used to anchor in deep water
B.a cone shaped bag used to slow down the wind drift effect
C.a padeye to which the sea painter is made fast
D.made of wood if it is an approved type

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單項選擇題

A self-contained breathing apparatus is used to（）.

A.make underwater repairs to barges
B.determine if the air in a tank is safe for men
C.enter areas that may contain dangerous fumes or lack oxygen
D.resuacitate an unconscious person

單項選擇題

A set of interior steps on a ship leading up a deck from below is known as（）.

A.a companion way
B.tween-decks
C.stairs
D.Any of the above are acceptable

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A sea anchor is（）.

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A self-contained breathing apparatus is used to（）.

A set of interior steps on a ship leading up a deck from below is known as（）.