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GeoGebra
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量度身高
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GeoGebra
New Resources
拼砌四邊形
兩位數加法
找出對稱軸
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
Discover Resources
斜率
M2: disc/shell
小圓外繞大圓
gjc093b19 梯形的面積
平行線(方格版)
Discover Topics
Percentages
Orthocenter
Circumcircle or Circumscribed Circle
Limits
Probability