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Author:
辛贺华
GeoGebra
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平行線的判定
第三周作业效果演示
第八周作业2
椭圆内切圆链
活动三:应用性质
Discover Resources
塗色
Rectangle_05
滚动的四面体
Copy of 圓周公式應用題1
乘法的副本
Discover Topics
Ellipse
Conic Sections
Step Functions
Centroid or Barycenter
Geometric Transformations