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
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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
A.three balls in a vertical line
B.two balls in a vertical line
C.one ball near the foremast and one ball at each fore yard
D.one diamond near the foremast head and one ball at each fore yard
A.a forward masthead light
B.sidelights and a sternlight
C.a towing light
D.All of the above
最新試題
A vessel being towed will show（）.
A proper look-out shall be maintained（）.
A vessel being pushed ahead is required to carry which of the following lights?（）.
A vessel crossing a river on the Western Rivers has the right of way over（）.
If the circumstances admit，（）of small alteration of course and speed shall not be taken to avoid collision.
A vessel being towed astern shall show at night（）.
In complying with the Rules，of what must the mariner take due regard?（）.
A vessel engaged in trawling will show identification lights of（）.
A proper look-out must be kept（）.
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（）.