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 plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
A rock and sand structure extending from the bank of the river toward the channel is known as a（）.
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? （）
A yellow buoy may mark a(n)（）.
Fishing stake，the position of which frequently（），exist in the area covered by this chart.
A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
A mid-channel buoy，if lighted，will show a（）.
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
A yellow buoy may exhibit a(n)（）.