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Author:
lunhsin
GeoGebra
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找出對稱軸
【案例】2013年安徽高考15题
異分母分數減法
拼砌四邊形
画直线等分三角形的面积
Discover Resources
判斷柱體 9
tesselation
心脏线切线族
腾讯动漫
九九乘法表
Discover Topics
Natural Numbers
Hyperbola
Volume
Cuboid
Straight Lines