50. 自巴拿馬Balboa(07°N, 082°30.0′W)航行至紐西蘭Auckland(35°S, 176°30.0′E),經查表得知緯度07°及35°的緯度漸長比數單位(meridional parts)分 別為418.2及2231.1,請計算起迄點間的大圈初航向(initial great circle course)?
(A)226°
(B)236°
(C)246°
(D)256°
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統計: A(5), B(43), C(23), D(5), E(0) #3384129
統計: A(5), B(43), C(23), D(5), E(0) #3384129