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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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
A.under sail
B.restricted in her ability to maneuver
C.crossing a channel
D.All of the above
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最新試題
A vessel constrained by her draught may,in addition to the lights prescribed for power-driven vessels in Rule 23,exhibit where they can best be seen()or a cylinder.
A vessel being pushed ahead is required to carry which of the following lights?().
A proper look-out shall be maintained().
A vessel approaching a narrow channel shall().
In a crossing situation,the stand-on vessel should normally().