单项选择题

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

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单项选择题
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
单项选择题
A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is（）.

A.white
B.green
C.red
D.yellow
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