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把心獻給妳
Author:
Wu Xiao-Ren
GeoGebra
New Resources
双心四边形
撒针估算面积实验
正方形雪花图案
活动三：应用性质
折扣
Discover Resources
陳林本proof53
正方形截痕
測試繪本
碎形六邊形的副本
三角形面積
Discover Topics
Area
Straight Lines
Prism
Parametric Curves
Logarithmic Functions