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三角形重心軌跡(動點在三圓上)
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GeoGebra
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湖南省张毅郴数字教研工作室 logo
sanjiaohanshu
找出對稱軸
美國國旗 (Codex 版)
小数 的副本
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整數加減向量示意
圓錐截痕
gitfh 複合圖形-正四角柱中挖圓柱
圓的基本性質
剪切成正三棱柱（制作：李三军，修订：孟宝兴）
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Rectangle
Scalene Triangles
Curve Sketching
Fractions
Binomial Distribution