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分數加法
Author:
iedc
GeoGebra
New Resources
第八周作业
兩位數除以一位數（一）
画直线等分三角形的面积
GeoGebra笔记功能体验课件
兩組對邊相等和有直角的四邊形
Discover Resources
第一冊
製作四個不同的梯形
x²+y²+z²的取值范围
含参的分段函数的单调性问题
兩位數除三位數(商>10)
Discover Topics
Quadratic Equations
Normal Distribution
Sequences and Series
Frequency Distribution
Quadrilaterals