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Author:
范欣茹
GeoGebra
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垂直線的斜率
【案例】2013年安徽高考15题
兩位數除以一位數(一)
多邊形的面積
兩位數除以一位數(二)
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Homework1
厘米和毫米
莫比烏斯帶01
菱形
变化的三角形的外心.许兴华数学
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Polygons
Variance
Median Line
Vectors 2D (Two-Dimensional)
Algebra