A.Longitude
B.Latitude
C.Height
D.Bearing
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A.submerged rock，not dangerous to navigation
B.sunken wreck，not dangerous to navigation
C.towed-under buoy
D.All of the above
A.fixed red light
B.Morse (A) white light
C.green light
D.flashing red light
A.wingdam
B.towhead
C.cutoff
D.landwall
A.black
B.yellow
C.green
D.red
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.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Square
A.great circle
B.loxodromic curve
C.small circle
D.gnomonic curve
A.Flashing
B.Quick flashing
C.Composite group flashing
D.Equal interval (isophase)
A.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Rectangle
A.the equator
B.a loxodromic curve
C.a small circle
D.a meridian
最新試題
A V-shaped ripple with the point of the V pointing upstream in a river may indicate a（）.
A parallel of latitude other than the equator is a（）.
A preferred-channel buoy will show a（）.
A mid-channel buoy，if lighted，will show a（）.
How would you pass a red buoy in the maritime buoyage system “A”? （）
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 preferred-channel buoy may be（）.
A yellow buoy may exhibit a(n)（）.
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
From your position you observe a rotating white and green light to the north. This light is most likely（）.