A.dike
B.revetment
C.cutoff
D.crib
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A.numbered
B.lettered
C.green
D.red
A.lighted with a white light
B.striped black and red
C.lighted with a red light
D.yellow
A.Flashing
B.Morse A
C.Equal interval
D.Occulting
A.Entrance buoy
B.New buoy
C.Port buoy
D.Cardinal buoy
A.wingdam
B.towhead
C.cutoff
D.landwall
最新試題
An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol? （）
Branford reef is（）.
A preferred-channel buoy will show a（）.
A spherical 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 vessel is（）when she is not at anchor，made fast to the shore，or aground.
A white buoy with an orange rectangle on it displays（）.
A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.
A white buoy with a blue band is（）.
How is the intensity of a light expressed in the Light Lists?（）.