单选题What defines a great circle? （）AA curved line drawn on a Mercator ChartBA course line that inscribes a loxodromic curveCThe shortest distance between any two points on the earthDThe smallest circle that can be drawn on the face of a sphere
单选题
What defines a great circle? （）
A
A curved line drawn on a Mercator Chart
B
A course line that inscribes a loxodromic curve
C
The shortest distance between any two points on the earth
D
The smallest circle that can be drawn on the face of a sphere
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