A.white
B.green
C.red
D.yellow
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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
A.two all-round red lights in a vertical line
B.three all-round red lights in a vertical line
C.two all-round yellow lights in a vertical line
D.three all-round green lights in a vertical line
最新試題
A vessel（）when underway shall so far as possible，keep out of the way of a vessel not under command.
A vessel continually lists to one side and has a normal rolling period. Which statement is TRUE?（）.
A vessel aground at night is required to show two red lights in a vertical line as well as （）.
A head-on situation at night is one in which you see（）.
In a crossing situation，a stand-on vessel which is forced to take action in order to avoid collision with a vessel on her own port side shall，if possible，avoid（）.
A vessel being pushed ahead is required to carry which of the following lights?（）.
If the circumstances admit，（）of small alteration of course and speed shall not be taken to avoid collision.
As look-out，you spot an object 45°off your port bow. You should report the object as（）.
A vessel crossing a river on the Western Rivers has the right of way over（）.
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.