A.should be passed close aboard on either side
B.indicates that special caution is required
C.is used at a channel bifurcation or junction
D.is painted with red and white vertical stripes
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A.easterly courses in high latitudes
B.southerly courses in high latitudes
C.westerly courses in low latitudes
D.easterly courses in low latitudes that cross the equator
A.plane tangent at one point
B.cylinder tangent at the equator
C.cone tangent at one parallel
D.infinite series of cones tangent at selected parallels
A.True position
B.True meridian
C.True course
D.True bearing
A.Longitude
B.Latitude
C.Height
D.Bearing
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A white buoy with an orange rectangle on it displays（）.
A preferred-channel buoy will show a（）.
A mid-channel buoy，if lighted，will show a（）.
A parallel of latitude other than the equator is a（）.
A relative bearing is always measured from（）.
How would you pass a red buoy in the maritime buoyage system “A”? （）
A rock and sand structure extending from the bank of the river toward the channel is known as a（）.
A preferred-channel buoy may be（）.
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（）.