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轨迹最值下31
Author:
万超杰
GeoGebra
New Resources
判斷球體
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
錐體建築師
GeoGebra笔记功能体验课件
Discover Resources
鏡射
初二奥数：全等三角形
In-centre
兩正方形重疊的形狀(配合習作40頁)
正方体表面积11种展开图
Discover Topics
Mathematics
Upper and Lower Sum or Riemann Sum
Optimization Problems
Intersection
Plane Figures or Shapes