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
An orange and white buoy with a rectangle on it displays（）.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）
A mid-channel buoy，if lighted，will show a（）.
A plane that cuts the Earth’s surface and passes through the poles will always form（）.
A V-shaped ripple with the point of the V pointing upstream in a river may indicate a（）.
A special purpose buoy shall be（）.
Buoys which mark dredging areas are painted（）.
How would you pass a red buoy in the maritime buoyage system “A”? （）
An orange and white buoy marking a danger area will have what symbol on it?（）
A yellow buoy may exhibit a(n)（）.