A.be green in color
B.have an even number
C.be left to port when entering from seaward
D.be cylindrical in shape
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A.fixed red light
B.Morse (A) white light
C.green light
D.flashing red light
A.gnomonic curve
B.small circle
C.meridian
D.great circle
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
最新試題
An orange and white buoy with a rectangle on it displays（）.
A special purpose buoy shall be（）.
Buoys which mark dredging areas are painted（）.
Branford reef is（）.
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（）.
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
A white buoy with an orange rectangle on it displays（）.
A relative bearing is always measured from（）.
A white buoy with an open-faced orange diamond on it indicates（）.
A white buoy with a blue band is（）.