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西安市第五十三中学 符成岗
Author:
符成岗
GeoGebra
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球体的体积推导
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
画直线等分三角形的面积
GeoGebra笔记功能体验课件
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Geogebra 與解析幾何
Copy of 七巧板
堆朵4邊形(試算表版)
拋物線：切線與弦中點
堆疊正立方體的副本
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Variance
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