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橢圓的摺紙
Author:
sidney100
GeoGebra
New Resources
龙形曲线-分形龙
第八周作业
第八周作业3
第三周作业效果演示
圓的切線方程
Discover Resources
橢圓
圓_Collection
正多面體
任意角的三角函数
勒洛四面体（参数曲面法）
Discover Topics
Parabola
Arithmetic
Statistical Characteristics
Rectangle
Calculus