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椭圆的定义
Author:
梁航宇
GeoGebra
New Resources
拼砌四邊形
兩位數加法
近似值：有效數字
畫出對稱圖形
直角坐標平面上的旋轉變換
Discover Resources
只跳升一次即下降的函數
觀察軌跡
三角形重心軌跡(動點在三圓上)
棒形圖2
柱體頂棱
Discover Topics
Rhombus
Subtraction
Differential Equation
Kite
Statistical Characteristics