在“Book3_Ch23_鸡兔同笼1__数学要素__从加减乘除到机器学习.pdf”23.4中个别语句表述有歧义,小贩是来“卖”小鸡和小兔的,建议把红框里的“买”改成“卖” <img width="652" height="238" alt="Image" src="https://github.com/user-attachments/assets/48c4f020-9b3d-4be4-888d-8701a335d86e" />