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waaachen

Author:陳兪宏
偷懶版本~~~

New Resources

  • 【案例】2018年全国1卷理科12题
  • 四邉形 (四年級) 教師版
  • 兩位數除以一位數(二)
  • 兩組對邊相等的四邊形
  • 兩組對邊相等和有直角的四邊形

Discover Resources

  • 下和與上和
  • 二次函數的圖形
  • demo
  • 椭圆的一种简单画法.许兴华数学
  • operation of matrix

Discover Topics

  • Rotation
  • Binomial Distribution
  • Incircle or Inscribed Circle
  • Intersection
  • Statistical Characteristics
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