並前往http://163.20.148.13/~mdhsmath/%E5%A5%A7%E6%9E%97%E5%8C%B9%E5%85%8B/29-8/%E7%AC%AC29%E5%B1%86%E5%9C%8B%E4%BA%8C%E7%AC%AC%E4%BA%8C%E7%AF%80%E9%A1%8C%E7%9B%AE.pdf
