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平抛运动规律
Author:
张坤
GeoGebra
New Resources
四邉形 (四年級) 教師版
三位數除以一位數（一）
兩位數加法
找出對稱軸
拼砌四邊形
Discover Resources
三角形與邊上一點求正三角形
變色孔雀
隨機迷宮
GGB1
GGB9
Discover Topics
Rectangle
Expected Value
Means
Symmetry
Plane Figures or Shapes