A.directions
B.dangers
C.exclusion areas
D.All of the above
您可能感興趣的試卷
你可能感興趣的試題
A.danger
B.vessels are excluded from the area
C.the buoy is a mooring buoy
D.operating restrictions are in effect
A.an isolated danger mark
B.a hydrographic data collection buoy
C.a mooring buoy
D.marking a restricted area
A.submerged rock，not dangerous to navigation
B.sunken wreck，not dangerous to navigation
C.towed-under buoy
D.All of the above
A.underway
B.making way
C.dead in the water
D.a power driven vessel
A.dike
B.revetment
C.cutoff
D.crib
最新試題
A plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
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（）.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）
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（）.
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）
From your position you observe a rotating white and green light to the north. This light is most likely（）.
An orange and white buoy with a rectangle on it displays（）.
A nun buoy will（）.
A plane that cuts the Earth’s surface and passes through the poles will always form（）.