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测试 = =
Author:
lanyi
bakaRu帮忙看看…… 你可以随意移动A和B两个点，A1和B1会自动移动
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
畫出對稱圖形
拼砌四邊形
【案例】圆柱体内放置一个大球六个小球
Discover Resources
【範本】資料整理與統計圖表─盒狀圖
分數乘法1
Lesson02 absolute value function
Copy of 圓周公式應用題2
Copy of 方格紙上畫平行四邊形3
Discover Topics
Upper and Lower Sum or Riemann Sum
Unit Circle
Geometry
Boxplot
Vectors 2D (Two-Dimensional)