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zhengming

Author:江卫军

New Resources

  • 垂直線的斜率
  • 三位數除以一位數(二)
  • 讀磅
  • 祖冲之的期望:内棋与外棋
  • 三位數除以一位數(一)

Discover Resources

  • 公弦
  • 兩圓內外公切線
  • Is this a prism 4
  • Plane
  • Chapter 11

Discover Topics

  • Combinatorics
  • Histogram
  • Circumcircle or Circumscribed Circle
  • Parallelogram
  • Similarity Transformation or Similarity
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