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學習活動五之一在解區域中由平行線法找出極值
Author:
CIY
GeoGebra
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錐體建築師
三位數除以一位數(二)
四邊形的特性
柱體建築師
算柱 (兩位數)
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摺紙1
Copy of 拼圖遊戲
National Flag of ROC 中華民國 國旗
动态专题—角度旋转
五組搶答
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Reflection
Solids or 3D Shapes
Multiplication
Sequences and Series
Histogram