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指數_1
Author:
陳柄何
GeoGebra
New Resources
異分母分數減法
三位數除以一位數（一）
GeoGebra笔记功能体验课件
畫出對稱圖形
兩組對邊相等的四邊形
Discover Resources
溫室設計圖
極線對偶定理 / polar duality theorem
正n凸多邊形旋轉對稱／反射對稱
两点电荷连线上电势的分布曲线（2017江苏高考题）
用方程解周界問題
Discover Topics
Geometric Mean
Frequency Distribution
Root
Statistics
Hyperbola