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封閉區域著色
Author:
侯杰材
GeoGebra
New Resources
球体的体积推导（优化版）
兩位數加法
找出對稱軸
畫出對稱圖形
拼砌四邊形
Discover Resources
圓周公式應用題2
GeoGebra Tube
Pokemon quiz (daliy)
繡曲線02
拋物線1--焦點法
Discover Topics
Quadratic Equations
Cylinder
Natural Numbers
Sequences and Series
Ratios