A.be green in color
B.have an even number
C.be left to port when entering from seaward
D.be cylindrical in shape
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A.fixed red light
B.Morse (A) white light
C.green light
D.flashing red light
A.gnomonic curve
B.small circle
C.meridian
D.great circle
A.relative bearing
B.range line
C.track line
D.estimated position
A.painted color
B.light color and phase characteristic
C.type of structure
D.All of the above
A.fixed red light
B.Morse (A) white light
C.composite group-flashing light
D.yellow light
最新試題
A nun buoy will（）.
From your position you observe a rotating white and green light to the north. This light is most likely（）.
A special purpose buoy shall be（）.
How is the intensity of a light expressed in the Light Lists?（）.
Buoys which mark isolated dangers are painted with alternating（）.
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
An orange and white buoy with a rectangle on it displays（）.
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
A spherical buoy may be（）.
A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.