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DANDELIN
Author:
zhou
GeoGebra
New Resources
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
球體建築師
GeoGebra笔记功能体验课件
四邉形 (四年級) 教師版
Discover Resources
sin&cos
testing book
圖形遊戲
比例中的定值問題(一)
長方形的周界與長和闊的關係 (學生版)
Discover Topics
Angles
Integers
Bar Chart or Bar Graph
Intersection
Kite