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優良作品3(祥恩)
Author:
Ching-Hui Chou
GeoGebra
New Resources
算柱 (兩位數)
異分母分數減法
找出對稱軸
兩位數除以一位數（二）
【案例】2013年安徽高考15题
Discover Resources
chuan-eBook
橢圓動畫
分數(等值)
ghk106a11 三角形面積比
多平面鏡反射成像
Discover Topics
Secant Line or Secant
Upper and Lower Sum or Riemann Sum
Plane Figures or Shapes
Right Triangles
Hyperbola