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Author:
呂麗珠
GeoGebra
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畫出對稱圖形
三位數除以一位數（一）
兩組對邊相等的四邊形
直角坐標平面上的旋轉變換
錐體建築師
Discover Resources
平面截距式
怪函數
對數圖形
多边形绕圆滚动
金惠吉：正弦交流电演示
Discover Topics
Random Experiments
Functions
Bar Chart or Bar Graph
Addition
Trigonometric Functions