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Author:
ray10430157
GeoGebra
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【案例】2013年安徽高考15题
兩位數加法
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（一）
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技巧集
補角關係
畢氏樹
圓與切線
圓錐截痕
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Planes
Tangent Line or Tangent
Interest Calculation
Stochastic Process or Random Process
Square