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 plane that cuts the Earth’s surface and passes through the poles will always form（）.
From your position you observe a rotating white and green light to the north. This light is most likely（）.
How is the intensity of a light expressed in the Light Lists?（）.
A V-shaped ripple with the point of the V pointing upstream in a river may indicate a（）.
Fishing stake，the position of which frequently（），exist in the area covered by this chart.
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）
A yellow buoy may exhibit a(n)（）.
A plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
Buoys which mark isolated dangers are painted with alternating（）.