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平行線(方格版)
Author:
SIN MING WONG
GeoGebra
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異分母分數減法
找出對稱軸
三位數除以一位數（二）
畫出對稱圖形
球體建築師
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乘法公式1
鉛筆畫圓
橢圓3--平行四邊形法
正方体展开图的副本
河南2019中考第23题
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Polygons
Sequences and Series
LCM and GCD
Rectangle
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