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中考2019北京—24
Author:
宋晓燕
GeoGebra
New Resources
兩位數加法
錐體建築師
畫出對稱圖形
拼砌四邊形
画直线等分三角形的面积
Discover Resources
三角形重心軌跡(動點在三圓上)
阿波羅尼奧斯圓
爱心
可控九九乘法口诀表
小正方体堆积的三视图
Discover Topics
Equilateral Triangles
Arithmetic
Cylinder
Division
General Quadrilateral