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為什麼我們看到的月亮都是同一面?
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自然領域-國小
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自然與生活科技國小組華龍國小李順興
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May 29, 2016, 10:59:11 PM
5/29/16
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to 臺中市國民教育輔導團公開討論區
因為月亮的自轉和繞地公轉的週期剛好相同〈同步〉,月亮在繞地公轉1圈時,也剛好完成了自轉1圈。
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