A.gnomonic curve
B.small circle
C.meridian
D.great circle
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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
A.flashing
B.pulsating
C.occulting
D.alternating
A.switching
B.alternating
C.oscillating
D.fluctuating
最新試題
How would you pass a red buoy in the maritime buoyage system “A”? （）
A preferred-channel buoy may be（）.
A V-shaped ripple with the point of the V pointing upstream in a river may indicate a（）.
From your position you observe a rotating white and green light to the north. This light is most likely（）.
A relative bearing is always measured from（）.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）
A plane that cuts the Earth’s surface and passes through the poles will always form（）.
An orange and white buoy with a rectangle on it displays（）.
A yellow buoy may mark a(n)（）.
A special purpose buoy shall be（）.