並前往https://hre.pro.edu.tw/storage/download/teaching_material-ch-35-1479437945/%E5%9C%8B%E4%B8%AD%E6%95%99%E6%A1%88-%E7%89%A0%E5%80%91%E3%80%8C%E9%87%8E%E3%80%8D%E8%A6%81%E5%B9%B8%E7%A6%8F%EF%BC%81.pdf