单项选择题
In restricted visibility a towed vessel must sound a fog signal when it is（）.
A.the last vessel in the tow
B.the last vessel in the tow and it is carrying a crew
C.manned，regardless of its position in the tow
D.None of the above are correct
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相关考题
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单项选择题
In reduced visibility，you hear two prolonged blasts of a whistle. This signal is sounded by a （）.
A.power-driven vessel dead in the water
B.sailing vessel on the port tack
C.vessel not under command
D.vessel fishing with nets -
单项选择题
In order to maintain speed while changing course from a close reach to a broad reach，the sails should be（）.
A.lowered
B.reefed
C.hauled in
D.eased out -
单项选择题
In order for a vessel to be engaged in fishing she must be（）.
A.underway
B.using gear which extends more than 50 meters outboard
C.using a seine of some type
D.using gear which restricts her maneuverability
