On a polar stereographic chart where the earth convergence between 2 points located on the parallel 60°N is 20°, the great circle maximum cross-track difference with the straight line joining the 2 points is:
发布于 2021-02-09 13:28:25
【单选题】
A 30 NM.
B 4.0 NM.
C 9.2 NM.
D 4.0 NM.
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