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平四3
Author:
数豆豆
GeoGebra
New Resources
異分母分數減法
三位數除以一位數（二）
錐體建築師
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
Discover Resources
final report
平行四邊形的組合
Copy of 固定周界的長方形的面積變化
迭帶
椭圆的定义
Discover Topics
Pie Chart or Circle Chart
Parallelogram
Quadratic Equations
Tangent Line or Tangent
Centroid or Barycenter