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單項(xiàng)選擇題

Generally, when lifting an inflatable life raft back aboard ship you would use the（）.

A.towing bridle
B.main weather cover
C.external lifelines
D.righting strap

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單項(xiàng)選擇題

Get the searchlight（）for transiting the cancal at night.

A.turned off
B.already
C.almost
D.ready

單項(xiàng)選擇題

GM cannot be used as an indicator of stability at all angles of inclination because（）.

A.M is not fixed at large angle
B.there is no M at large angles
C.G is not fixed at large angles
D.there is no G at large angles

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