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甜甜圈v5
Author:
lin yiju
GeoGebra
New Resources
畫出對稱圖形
四邊形的特性
球體建築師
柱體建築師
異分母分數減法
Discover Resources
百分數（小學）：折扣 / 賺賠
Rectangle
Lesson02 absolute value function
圓冪：到兩點的內積
二次函數
Discover Topics
Statistical Characteristics
Perimeter
Arithmetic Mean
Poisson Distribution
Distributions