单选题Apparent time is based on（）.Aa fictitious sun moving along the celestial equatorBthe visible sun moving along the eclipticCthe Moon's motion in relation to the SunDthe movement of the first point of Aries
单选题
Apparent time is based on（）.
A
a fictitious sun moving along the celestial equator
B
the visible sun moving along the ecliptic
C
the Moon's motion in relation to the Sun
D
the movement of the first point of Aries
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