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圖騰 DEMO
Author:
陳科旭
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
四邊形的特性
球體建築師
第八周作业
Discover Resources
数轴上的整数加法
畢氏定理的證明(三移動)
Error (誤差)
Sonia and Julie
拋物線2-焦點法
Discover Topics
Statistics
Polygons
Frequency Distribution
Bar Chart or Bar Graph
Cuboid