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
A preferred-channel buoy will show a（）.
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
A mid-channel buoy，if lighted，will show a（）.
How is the intensity of a light expressed in the Light Lists?（）.
A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
Buoys which mark dredging areas are painted（）.
A special purpose buoy shall be（）.
A white buoy with an open-faced orange diamond on it indicates（）.
A relative bearing is always measured from（）.
Fishing stake，the position of which frequently（），exist in the area covered by this chart.