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
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.
How is the intensity of a light expressed in the Light Lists?（）.
A white buoy with an orange rectangle on it displays（）.
A white buoy with an open-faced orange diamond on it indicates（）.
Branford reef is（）.
Fishing stake，the position of which frequently（），exist in the area covered by this chart.
A plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
A parallel of latitude other than the equator is a（）.