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蜗牛壳模型
Author:
孟宝兴
GeoGebra
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兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
異分母分數減法
Discover Resources
三角形內角和
Task 1: Rectangle Construction
三角形的分割與組合(1)
馬字歌
Temp file
Discover Topics
Boxplot
Power Functions
Rational Numbers
Logarithm
Rectangle