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陳人瑜proof81
Author:
郭亮偉
GeoGebra
New Resources
【案例】2013年安徽高考15题
兩位數加法
錐體建築師
四邊形的特性
球体的体积推导（优化版）
Discover Resources
象形圖_李樂雯
指數的對稱
P53_3a
P4_四下_面積（一）(教師版)
重心
Discover Topics
Rhombus
Tangent Function
Logarithmic Functions
Quadrilaterals
Vectors 3D (Three-Dimensional)