单项选择题
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.always be nearer to the equator
B.always be nearer to the elevated pole
C.be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern Hemisphere
D.be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions
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A.Flashing
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