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  1. Wolf, goat and cabbage problem - Wikipedia

  2. Cow Crossing the River - HILARIOUS Ending! - YouTube

  3. Children Story-The pony crossed the river-xiao ma guo he 小马过河

  4. Places where cows can cross water: Vancouver, the Bosporus ... - Reddit

  5. Farmer Crosses River Puzzle - Solution - Math is Fun

  6. 简单英语故事带翻译:小马过河 - 沪江英语

  7. USACO 2013 February Contest, Bronze

  8. Cows Crossing a Ford - Wikipedia

  9. 小马过河 How a Colt Crossed the River - 国学梦

  10. 简单英语故事带:小马过河(图)_手机新浪网 - Sina.cn