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二分法优化版（视频教程见https://www.bilibili.com/video/BV1ST4y1F78g）
Author:
赵林
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
判斷球體
【案例】2013年安徽高考15题
兩位數除以一位數（二）
球體建築師
Discover Resources
複數
三视图
P4菱形定義
Pyramid with square base (angle between planes)
微元法演示
Discover Topics
Translation
Coordinates
Geometric Transformations
General Quadrilateral
Triangles