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保持比例
Author:
hjyanghj
Topic:
Geometry
GeoGebra
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三位數除以一位數（二）
三位數除以一位數（一）
畫出對稱圖形
異分母分數減法
錐體建築師
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空白圖檔
glt-c05-05 正四角錐旋轉
Solar System
馬字歌
公因數應用題的副本
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Parallelogram
Translation
Logarithmic Functions
Sine
Differential Calculus