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圆锥的侧面展开图3D动画的副本
Author:
张健
,
qianqianhouhou
拖动点C
GeoGebra
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兩組對邊相等和有直角的四邊形
兩位數加法
算柱 (兩位數)
兩組對邊相等的四邊形
兩位數除以一位數（一）
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橢圓軌跡 (2)
GeoGebra与数学教育论坛通知
學習單：三角形任一外角與內角關係
HKDSE 2015 by Mr LO WY
y=sinx描點
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Functions
Inequalities
Area
Equations
Addition