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极值点偏移
Author:
liu
GeoGebra
New Resources
球體建築師
GeoGebra笔记功能体验课件
兩位數除以一位數（二）
第八周作业
兩組對邊相等和有直角的四邊形
Discover Resources
空白圖檔
polygon(first upload)
拋物線教學_2016
極座標與圓進階版
circle
Discover Topics
Algebra
Multiplication
Square
Volume
Division