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拋物面的光學性質
Author:
宋政蒲
GeoGebra
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【案例】2018年全国1卷理科12题
三位數除以一位數（二）
兩位數除以一位數（二）
算柱 (兩位數)
兩位數加法
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藝術著色
Quiz on Angle between a Line and a Plane 線面角：測驗
複合圖形(八)
外心的位置
Gazing Cow Problem (b)
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Angles
Frequency Distribution
Median Line
Integers
Upper and Lower Sum or Riemann Sum