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摘要: Puzzle Calendars 2023 What’s the ratio of the areas of the triangle and the crescent-shaped “lune” formed by two circular arcs? How many non-attacking 阅读全文
posted @ 2024-01-02 19:28 小奔奔 阅读(2) 评论(0) 推荐(0) 编辑
摘要: 2024 你好,2024! 阅读全文
posted @ 2024-01-02 17:27 小奔奔 阅读(2) 评论(0) 推荐(0) 编辑
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posted @ 2024-01-02 16:46 小奔奔 阅读(0) 评论(0) 推荐(0) 编辑