9. 某船自A港(L49°33.0’S,λ64°46.0’W)依航向305°,採麥氏航法(Mercator Sailing)航行
279浬後駛抵B港,則請問A、B兩地間之緯度漸長比數差(Meridional Difference)為何?
(A) 239.5
(B) 235.1
(C) 232.6
(D) 229.4
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統計: A(11), B(17), C(15), D(16), E(0) #1309428
統計: A(11), B(17), C(15), D(16), E(0) #1309428