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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
折扣
异形操场
第八周作业
第八周作业2
Discover Resources
歐幾米德多面體（四邊形與六邊形）
聯立方程組
XY 圖線段長度計算
正方形
椭圆滚动
Discover Topics
Solids or 3D Shapes
Functions
Limits
Linear Programming or Linear Optimization
Geometry