22.已知兩地緯度A°N及B°S (A>B),則平均緯度為何?
(A)(A+B) °N/2
(B)(A-B) °N/2
(C)(A+B) °S/2
(D)(A-B) °S/2

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統計: A(18), B(48), C(9), D(2), E(0) #1197011