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單項(xiàng)選擇題

A vessel engaged in trawling will show identification lights of（）.

A.a red light over a white light
B.a white light over a red light
C.a green light over a white light
D.two red lights in a vertical line

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單項(xiàng)選擇題

A vessel engaged in mine clearance operations is called（）.

A.a vessel restricted in her ability to maneuver
B.a vessel not under command
C.a vessel constrained by her draught
D.a vessel not under way

單項(xiàng)選擇題

A vessel engaged in fishing shall keep out of the way of a vessel（）.

A.under sail
B.restricted in her ability to maneuver
C.crossing a channel
D.All of the above

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