公元是从哪一年计算起的?为什么分公元前和公元后?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 18:39:21
![公元是从哪一年计算起的?为什么分公元前和公元后?](/uploads/image/z/3909534-6-4.jpg?t=%E5%85%AC%E5%85%83%E6%98%AF%E4%BB%8E%E5%93%AA%E4%B8%80%E5%B9%B4%E8%AE%A1%E7%AE%97%E8%B5%B7%E7%9A%84%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E5%88%86%E5%85%AC%E5%85%83%E5%89%8D%E5%92%8C%E5%85%AC%E5%85%83%E5%90%8E%3F)
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