並前往http://www.sec.ntnu.edu.tw/Monthly/93(266-275)/269/6%E8%87%BA%E5%8C%97%E5%B8%82%E5%85%A7%E6%B9%96%E9%87%91%E9%9D%A2%E5%B1%B1%E5%8D%80%E5%85%A9%E6%A3%B2%E7%88%AC%E8%A1%8C.pdf