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前景背景
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
球体的体积推导
球體建築師
異分母分數減法
第八周作业
拼砌四邊形
Discover Resources
優良作品1(力誌)
二次函數02
Incentre
绘本1-平面直角坐标系复习
固定周界的長方形的面積變化（周界是200厘米）
Discover Topics
General Quadrilateral
Translation
Upper and Lower Sum or Riemann Sum
Variance
Random Variables