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台球反射
Author:
朱亮
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩位數加法
兩位數除以一位數（二）
球體建築師
錐體建築師
Discover Resources
正立方體與正三角錐
Closure shape
p10-7
空間中的平面與直線
圖形C
Discover Topics
Similarity Transformation or Similarity
Boxplot
Area
Vectors
Diagrams