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28. 已知某恆星赤緯(Dec)為56°17.0'N,下中天高度為26°17.0',則其上中天高度 (Ht)與方位(Zn)大約為何?
(A)Ht:33°43.0'與Zn180°
(B)Ht:86°17.0'與Zn180°
(C)Ht:33°43.0'與Zn000°
(D)Ht:86°17.0'與Zn000°


28. 已知某恆星赤緯(Dec)為56°17.0'N,下中天高度為26°17.0..-阿摩線上測驗