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Author:
陳科旭
GeoGebra
New Resources
異分母分數減法
找出對稱軸
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
拼砌四邊形
Discover Resources
Angles between 2 planes
真分數乘以真分數
拋物線4--平行四邊形法
連連看！橢圓在哪裡？
第八周的作业
Discover Topics
Conic Sections
Ratios
Mathematics
Function Graph
Secant Line or Secant