20.已知Lat 42°S,LHA 335°,Dec 20°S,請用229表求計算高度(Hc)及計算方位(Zn)?
(A)Hc:59°30.9';Zn:051.5°
(B)Hc:59°30.9';Zn:308.5°
(C)Hc:(-)59°30.9';Zn:051.5°
(D)Hc:(-)59°30.9';Zn:308.5°
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統計: A(117), B(78), C(50), D(14), E(0) #626893
統計: A(117), B(78), C(50), D(14), E(0) #626893