1.天球上任一通過天體與天球南北極的大圈稱為何?
(A)日行圈(Diurnal Circle)
(B)卯酉圈(Prime Vertical Circle)
(C)高度平行圈(Parallel of Altitude)
(D)時圈(Hour Circle)
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統計: A(2), B(4), C(3), D(48), E(0) #1330488
統計: A(2), B(4), C(3), D(48), E(0) #1330488