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Author:
鍾文欽
GeoGebra
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兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
異分母分數減法
兩位數加法
【案例】2013年安徽高考15题
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了解圓方程(1)
判斷柱體10
花瓣曲線
椭圆内光线的反射
翰林數學_2下_CH4-3_四邊形的種類
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Cuboid
Constructions
Quadratic Functions
Limits
Translation