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
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A.True position
B.True meridian
C.True course
D.True bearing
A.Longitude
B.Latitude
C.Height
D.Bearing
最新試題
A spherical buoy may be（）.
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol? （）
A white buoy with an orange rectangle on it displays（）.
Branford reef is（）.
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 and passes through the poles will always form（）.
A yellow buoy may exhibit a(n)（）.
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 white buoy with a blue band is（）.