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Author:
孟宝兴
GeoGebra
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球体的体积推导（优化版）
異分母分數減法
球體建築師
第八周作业
【案例】2018年全国1卷理科12题
Discover Resources
Projection
外公切線段長求法
圓周 (圖形B)
旋轉的概念
聖者即正義
Discover Topics
Centroid or Barycenter
Vectors 2D (Two-Dimensional)
Polynomial Functions
Cosine
Right Triangles