並前往http://newstudent.shute.kh.edu.tw/98prf24/A/A-2%E7%A0%94%E6%93%AC%E9%81%A9%E5%88%87%E7%9A%84%E6%95%99%E5%AD%B8%E8%A8%88%E7%95%AB(%E6%95%99%E6%A1%88)/a-2-1ch6.ppt