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教学素材：离心率相同的双曲线
Author:
清风拂琴，陌上花开
GeoGebra
New Resources
第三周作业效果演示
科赫雪花
比較五件物件的重量
第八周作业1
龙形曲线-分形龙
Discover Resources
hint
尺規作圖
橢圓
指数函数的副本
S0E03 平面截立方体
Discover Topics
Mathematics
Special Points
Geometry
Congruence
Vectors 3D (Three-Dimensional)