Earth Science
Senior High
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高一地科天文篇
!辣 A人Ai
星等數值最小。(96 年學測) 一瓜和
「 3已知甲星與乙星都是造父變昨 甲星的視星
《銜 笨時的亮度身化週期相同,表示甲、厂兩星的
甲星的幾倍\? 屯
全信和放生測)
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