A.only in fog
B.only between the hours of sunset and sunrise
C.only when entering and leaving port
D.at all times
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A.one sidelight of a vessel ahead of you
B.one sidelight and a masthead light of a vessel ahead of you
C.one sidelight，a masthead light，and a range light of a vessel ahead of you
D.both sidelights of a vessel dead ahead of you
A.humidity
B.varying densities of water
C.vessel traffic
D.the jet stream
A.besides
B.excepted
C.otherwise
D.other than
A.there are other vessels in the vicinity
B.operating in a traffic separation scheme
C.engaged in a situation involving more than two vessels
D.necessary to avoid immediate danger
A.The rules require vessels to comply with Traffic Separation Scheme regulations
B.The rules use the term safe speed
C.The Rules permit a stand-on vessel to take action prior to being in extremis
D.All of the above are correct
最新試題
A vessel engaged in fishing during the day would show（）.
A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is（）.
A vessel being towed will show（）.
A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights（）.
A vessel engaged in mine clearance operations is called（）.
If a seaplane is not used as a means of transpiration on water but is capable of being used so，it shall（）.
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（）.
If the circumstances admit，（）of small alteration of course and speed shall not be taken to avoid collision.
A vessel engaged in fishing shall keep out of the way of a vessel（）.
In complying with the Rules，of what must the mariner take due regard?（）.