A.the equator
B.a great circle
C.a small circle
D.a meridian
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A.the equator
B.a loxodromic curve
C.a small circle
D.a meridian
A.Great circle
B.Equator
C.Small circle
D.Meridian
A.great circle
B.loxodromic curve
C.small circle
D.gnomonic curve
A.be green in color
B.have an even number
C.be left to port when entering from seaward
D.be cylindrical in shape
A.fixed red light
B.Morse (A) white light
C.green light
D.flashing red light
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A special purpose buoy shall be（）.
A SEAMARK，I.E. A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G. A WRECK is（）.
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 V-shaped ripple with the point of the V pointing upstream in a river may indicate a（）.
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
How is the intensity of a light expressed in the Light Lists?（）.
An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol? （）
A preferred-channel buoy will show a（）.
A relative bearing is always measured from（）.