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探究判定全等三角形的条件（ SSA? & HL！）
Author:
孙敏捷
GeoGebra
New Resources
異分母分數減法
判斷球體
【案例】2013年安徽高考15题
找出對稱軸
球體建築師
Discover Resources
Riemann Sums
三角形重心軌跡
對數函數1
周界
GGB1
Discover Topics
Boxplot
Exponent
Linear Functions
Trigonometry
Equilateral Triangles