20.已知某天體的地理位置為:緯度53°S,經度138°E,則此時天體的座標為何?
(A)赤緯37°S,GHA138°
(B)赤緯37°S,GHA222°
(C)赤緯53°S,GHA138°
(D)赤緯53°S,GHA222°
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統計: A(1), B(12), C(3), D(32), E(0) #1206006
統計: A(1), B(12), C(3), D(32), E(0) #1206006