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Author:
horizon liu
GeoGebra
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拼砌四邊形
兩組對邊相等的四邊形
兩位數除以一位數（一）
錐體建築師
柱體建築師
Discover Resources
Function Transformations(1) 函數圖像的變換 (1)
Test
等比数列前n项和公式
双曲线的参数方程的副本
开关灯
Discover Topics
Intersection
Circle
Difference and Slope
Equilateral Triangles
Root