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
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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
A.be regarded as a vessel not under command
B.be regarded as a vessel underway
C.be regarded as a vessel
D.be regarded as a sailing vessel
最新試題
A vessel engaged in fishing during the day would show（）.
A vessel（）when underway shall so far as possible，keep out of the way of a vessel not under command.
A vessel engaged in trawling will show identification lights of（）.
If a seaplane is not used as a means of transpiration on water but is capable of being used so，it shall（）.
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 proper look-out shall be maintained（）.
Vessels，（）support vessels，should not enter the safety zone of a deepwater port unless clearance has been obtained from the Vessel Traffic Supervisor.
Which statement about the Navigation Rules is TRUE?（）.
As look-out，you spot an object 45°off your port bow. You should report the object as（）.
A proper look-out must be kept（）.