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五上-CP4-第三节平行四边形面积1
Author:
冉献伟
GeoGebra
New Resources
畫出對稱圖形
算柱 (兩位數)
球體建築師
三位數除以一位數（一）
画直线等分三角形的面积
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繪製一次函數圖形
乘法1
gjh-e01-03 未知數邊長的三角形
橢圓軌跡05
untitled a01
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Means
Similarity Transformation or Similarity
Root
Normal Distribution
Mathematics