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面積與周界活動
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GeoGebra
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找出對稱軸
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四邊形的特性
第八周作业
三位數除以一位數（二）
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北區模考非選第二題 (2014.03.06)
gjh-g01-01 單項乘以兩項差
太空版憤怒鳥
Statistical calculator
光的折射
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Indefinite Integral
Equations
Rhombus
Parametric Curves
Geometric Mean