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Author:
Jia-ming Shiu
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GeoGebra
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柱體建築師
畫出對稱圖形
三位數除以一位數（二）
判斷球體
兩位數除以一位數（二）
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分數減法
四次函數圖形&反曲點
多边形对角线
HKDSE 2016 by Mr LO WY
螺旋正方形
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Terms
Limits
Variance
Exponent
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