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平移2
Author:
kellyng895130
GeoGebra
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兩組對邊相等的四邊形
四邊形的特性
拼砌四邊形
四邉形 (四年級) 教師版
兩位數除以一位數（二）
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分數與小數
優良作品2
放射狀旋轉圖形(2)
Wave Interference
長方體的體積
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Conditional Probability
General Quadrilateral
Complex Numbers
Differential Calculus
Median Line