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一次函數
Author:
shan chun
GeoGebra
New Resources
sanjiaohanshu
兩位數加法
判斷球體
兩位數除以一位數（二）
拼砌四邊形
Discover Resources
Standard Deviation (one data set) 標準差（一組數據）
證平行四邊形 (對角相等)
切割正十二面體(平)
平行线间的等积变形-第一题
圓周_心算題02
Discover Topics
Ellipse
Line Segment
Planes
Circumcircle or Circumscribed Circle
Constructions