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教学素材：离心率相同的椭圆
Author:
清风拂琴，陌上花开
GeoGebra
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【案例】2013年安徽高考15题
球體建築師
球体的体积推导
GeoGebra笔记功能体验课件
柱體建築師
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優良作品1(沛綺)
摩天輪
三次函數02
拋物面光學性質
錐體體積比較
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Statistical Characteristics
Planes
Constructions
Similar Triangles
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