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一次函数的引入
Author:
图像数学
GeoGebra
New Resources
畫出對稱圖形
拼砌四邊形
判斷球體
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
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百分數：買賣問題（Java 版）
Angle between a Line and a Plane 投影與線面角
兩位數除法
平行線(方格版)
活工(一)Q4
Discover Topics
Upper and Lower Sum or Riemann Sum
Complex Numbers
Dilation
Optimization Problems
Numbers