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百葉窗
Author:
李春培
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
兩位數除以一位數（二）
球体的体积推导（优化版）
Discover Resources
梯形的面積
優良作品1(沛綺)
四角柱(底面、高可調整)
夜市麻將模擬機2
三節棍
Discover Topics
Division
Sequences and Series
Trigonometric Functions
Expected Value
Calculus