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布丰投针实验
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朱亮
GeoGebra
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中華民國國旗 (Codex╱2026.10.06)
幾何作圖題：切三圓（題目）
Earth with coastline
Claude 解幾何題
美國國旗 (Codex, 2026.10.06)
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三下_三角形(學生版)
六下_圓周(學生版)
Proof2 周子翔
日照图
Orthocentre
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Integral Calculus
Geometric Transformations
Linear Regression
Kite
Derivative