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二次函数1
Author:
陈铁成
GeoGebra
New Resources
錐體建築師
判斷球體
第八周作业
球体的体积推导（优化版）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
gjc91v127 三角形旋轉
sdjkgsdfagjklsanklgsa
Ellipse_Horizontal
匀变速直线运动位移公式推导
函數的面積 (黎曼和) 的複本
Discover Topics
Triangles
Division
Curve Sketching
Root
Linear Programming or Linear Optimization