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優良作品2(怡婷)
Author:
Ching-Hui Chou
GeoGebra
New Resources
画直线等分三角形的面积
拼砌四邊形
錐體建築師
三位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
Quiz on Equation of Straight Lines 直線的方程：測驗
藝術著色2
觀察軌跡求面積
拼貼2
分項對消式的寫法的副本
Discover Topics
Definite Integral
Symmetry
Cylinder
Integral Calculus
Upper and Lower Sum or Riemann Sum