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Author:
张书真
GeoGebra
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近似值：有效數字
小数 的副本
GeoGebra笔记功能体验课件
找出對稱軸
兩位數除以一位數（二）
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加法
拿破侖定理(外拿破侖)證明二
p05 eqidistant from two lines
圓周角觀察操作
结果10以内加法
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Coordinates
Parametric Curves
Expected Value
Linear Equations
General Quadrilateral