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折扣 例1的副本
Autor:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
Novos Materiais
拼砌四邊形
兩位數除以一位數（二）
找出對稱軸
異分母分數減法
畫出對稱圖形
Descubra Materiais
銀杏葉
Solve Linear Inequalities graphically(二元一次不等式的圖解)
Double Integral
教学素材：指数函数与对数函数互为反函数
計算圖形周界（小六下）
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Prisma
Pirâmide
Cilindro
Quadriláteros
Elipse