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堑堵 鳖臑 阳马
Author:
孟宝兴
GeoGebra
New Resources
異分母分數減法
画直线等分三角形的面积
拼砌四邊形
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
Discover Resources
等腰，角度关系
Rectangle _03
conjugate
美麗的花
圓面積的應用
Discover Topics
Centroid or Barycenter
Addition
Logic
Limits
Median Line