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若隐若现的白点
Author:
宋晓燕
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
球體建築師
判斷球體
【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
Discover Resources
animation for kastin
會動的函數圖形
二次曲線的準線與焦點
如何求弦長
Quiz on Addition and Subtraction of Directed Numbers (2)
Discover Topics
Incircle or Inscribed Circle
Matrices
Tree Diagrams
Division
Stochastic Process or Random Process