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整式乘法-平方差公式
Author:
孟宝兴
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（二）
四邊形的特性
異分母分數減法
算柱 (兩位數)
Discover Resources
方塊圖_李樂雯
旋轉的概念
增加數據對平均數的影響
變化圖形製作
Sunrays with different angles
Discover Topics
Equilateral Triangles
Interest Calculation
Conic Sections
Arithmetic
Normal Distribution