A.Flashing
B.Morse A
C.Equal interval
D.Occulting
您可能感興趣的試卷
你可能感興趣的試題
A.Entrance buoy
B.New buoy
C.Port buoy
D.Cardinal buoy
A.wingdam
B.towhead
C.cutoff
D.landwall
A.true north
B.magnetic north
C.the vessel's beam
D.the vessel's head
A.white light whose characteristic is Morse (A)
B.group-occulting white light
C.composite group-flashing (2 + 1) white light
D.composite group-flashing (2 + 1) red or green light
A.lettered
B.spherical
C.showing a white light
D.All of the above
最新試題
A spherical buoy may be（）.
A parallel of latitude other than the equator is a（）.
An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol? （）
A nun buoy will（）.
A preferred-channel buoy may be（）.
A relative bearing is always measured from（）.
Fishing stake，the position of which frequently（），exist in the area covered by this chart.
An orange and white buoy marking a danger area will have what symbol on it?（）
A plane that cuts the Earth’s surface and passes through the poles will always form（）.
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）