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證平行四邊形 (對角相等)

Author:W.L. Wong, Albert

New Resources

  • 四邉形 (四年級) 教師版
  • 判斷球體
  • 兩位數加法
  • 四邊形的特性
  • 兩組對邊相等和有直角的四邊形

Discover Resources

  • 車輪車輪
  • XYAxix
  • 手表内部秒针结构示意
  • 鉛筆畫圓
  • sin(x) 的函數圖形的副本

Discover Topics

  • Special Points
  • Square
  • Set Theory
  • Upper and Lower Sum or Riemann Sum
  • Random Experiments
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