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Author:
赵林
GeoGebra
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四邊形的特性
兩位數加法
畫出對稱圖形
【案例】2018年全国1卷理科12题
小数 的副本
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題八
task4
angle between 2 planes 02
no10
中位线的副本
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Surface
Combinatorics
Statistical Characteristics
Incircle or Inscribed Circle
Linear Equations