並前往https://hre.pro.edu.tw/storage/download/teaching_material-ch-34-1448503977/%E5%9C%8B%E4%B8%AD%E4%BD%B3%E4%BD%9C%20-%20%E7%BE%8E%E9%BA%97%E5%B3%B6%E7%AB%99%E8%83%8C%E5%BE%8C%E7%9A%84%E4%B8%8D%E7%BE%8E%E9%BA%97%E4%BA%8B%E4%BB%B6.pdf