A.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Square
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A.Open-faced diamond
B.Diamond with a cross
C.Circle
D.Square
A.wreck
B.shoal area
C.anchorage area
D.middle ground
A.fixed red light
B.flashing light
C.white light
D.occulting light
A.directions
B.dangers
C.exclusion areas
D.All of the above
A.danger
B.vessels are excluded from the area
C.the buoy is a mooring buoy
D.operating restrictions are in effect
最新試題
An orange and white buoy with a rectangle on it displays（）.
A nun buoy will（）.
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 special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
A plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
How would you pass a red buoy in the maritime buoyage system “A”? （）
A yellow buoy may mark a(n)（）.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）
A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）