A.from a submarine on the surface
B.the light at Southeast Point
C.at an airport
D.on a coastal patrol vessel
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A.removed
B.altered
C.corrected
D.converted
A.always be nearer to the equator
B.always be nearer to the elevated pole
C.be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern Hemisphere
D.be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions
A.Flashing
B.Quick flashing
C.Composite group flashing
D.Equal interval (isophase)
A.red and black bands
B.green and black bands
C.red and white stripes
D.green and white bands
A.black
B.yellow
C.green
D.red
最新試題
A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
A parallel of latitude other than the equator is a（）.
A nun buoy will（）.
A white buoy with a blue band is（）.
A preferred-channel buoy may be（）.
Except for N-S courses，and E-W courses on the equator，a great circle track between two points，when compared to a rhumb line track between the same two points，will（）.
A rock and sand structure extending from the bank of the river toward the channel is known as a（）.
A mid-channel buoy，if lighted，will show a（）.
How would you pass a red buoy in the maritime buoyage system “A”? （）
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）