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
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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 yellow buoy may exhibit a(n)（）.
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