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平面截圆锥
Author:
陈宜红
GeoGebra
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比較五件物件的重量
龙形曲线-分形龙2
百分數及其應用
龙形曲线-分形龙
活动三:应用性质
Discover Resources
YH的GGB_BOOK
椭圆的参数方程
數學傳播39卷4期, 平面幾何公式思考
yuanmianjituidao
繪畫長方形
Discover Topics
Reflection
Dilation
Equations
Special Points
Parallelogram