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矩阵（自动）计算（数据为0-5的随机数）
Author:
苏州金门布衣
Topic:
Matrices
GeoGebra
New Resources
兩位數加法
畫出對稱圖形
柱體建築師
球體建築師
四邊形的特性
Discover Resources
y=ax²的圖形
GeoGebraBook(for20151202)
圆的面积展开的副本
我的第一个GGB绘本
表内乘法
Discover Topics
Hypothesis Testing
Quadrilaterals
Pyramid
Fractal Geometry
Addition