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象限
Author:
李春培
GeoGebra
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拼砌四邊形
【案例】2013年安徽高考15题
画直线等分三角形的面积
畫出對稱圖形
球體建築師
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分段移動
gjh-g06-00 乘法公式綜合應用
圓錐截痕
拋物線6--包絡線法
基础知识
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Arithmetic
Equilateral Triangles
Cone
Sequences and Series
Inequalities