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Author:
jinwen
GeoGebra
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平行線的判定
斐波那契螺旋弧线（表格法-可动态调节）
龙形曲线-分形龙
中华人民共和国国旗
折扣
Discover Resources
Prism and Cylinder 1
test
彩色包絡球
長方形的對稱軸
根據百分率找數量（二）: 例2的副本
Discover Topics
Trigonometry
Geometry
Special Points
Pythagoras or Pythagorean Theorem
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