單項(xiàng)選擇題

A gnomonic projection is based on a(n)（）.

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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單項(xiàng)選擇題

（）refers to the angle between true North and the heading line of the ship.

A.True position
B.True meridian
C.True course
D.True bearing

單項(xiàng)選擇題

（）is the distance east or west measured in degrees，minutes and seconds of arc on the equator between the prime meridian and the meridian passing through the place.

A.Longitude
B.Latitude
C.Height
D.Bearing

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A gnomonic projection is based on a(n)（）.

你可能感興趣的試題

（）refers to the angle between true North and the heading line of the ship.

（）is the distance east or west measured in degrees，minutes and seconds of arc on the equator between the prime meridian and the meridian passing through the place.