A.under sail
B.restricted in her ability to maneuver
C.crossing a channel
D.All of the above
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A.white
B.green
C.red
D.yellow
A.one black ball
B.two cones with bases together
C.a cone，apex downward
D.two cones，apexes together
A.an anchor light
B.sidelights and a sternlight
C.three lights in a vertical line，the highest and lowest being red，and the middle being white
D.None of the above
A.vessels ascending the river
B.vessels descending the river
C.all vessels ascending and descending the river
D.None of the above
A.The vessel has negative GM
B.The center of gravity is on the centerline
C.The list can be corrected by reducing KM
D.The vessel has asymmetrical weight distribution
最新試題
In dense fog a vessel without operational radar may not be justified（）at all but should anchor if it is safe and practicable for her to do so.
A vessel（）a crossing vessel，shall not normally enter a separation zone or cross a separation line.
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 engaged in fishing during the day would show（）.
A vessel enagaged in fishing，and at anchor，shall show（）.
A proper look-out shall be maintained（）.
If the circumstances of the case admit，any vessel（）in a narrow channel.
If a vessel is engaged in fishing according to the definitions in the Rules，it will have （）.
A vessel being towed will show（）.
A proper look-out must be kept（）.