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proof3(1-1)吳奕杰
Author:
郭亮偉
GeoGebra
New Resources
異分母分數減法
四邉形 (四年級) 教師版
兩位數除以一位數（一）
【案例】2013年安徽高考15题
GeoGebra笔记功能体验课件
Discover Resources
Angles in the Circumference and the Centre
遊戲
Graph of Quadratic Function
含有任意量词与存在量词的最值问题
达芬奇椭圆仪
Discover Topics
Rhombus
Planes
Difference and Slope
Indefinite Integral
Prism