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Author:
马云辉
GeoGebra
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球體建築師
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
兩位數除以一位數（一）
兩位數加法
Discover Resources
Quiz on Factorization of Quadratic Polynomials (Cross Method) 因式分解一元二次多項式(十字相乘法)：測驗
重心性質
Copy of 固定周界的長方形的面積變化
earth
圓-符號核能
Discover Topics
Vectors 3D (Three-Dimensional)
Quadrilaterals
Exponential Functions
Poisson Distribution
Dilation