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Author:
李春培
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GeoGebra
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GeoGebra笔记功能体验课件
判斷球體
兩位數加法
第八周作业
四邊形的特性
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橢圓
一个圆的若干竞赛异型题
生日悖論
最小周長
雙曲線3-等軸法
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Triangles
Circle
Optimization Problems
Tangent Line or Tangent
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