並前往https://ocw.niu.edu.tw/pluginfile.php/508/mod_folder/content/0/Chapter%2011%20%E8%A6%81%E7%B4%A0%E5%B8%82%E5%A0%B4-%E5%AE%8C%E6%95%B4%E7%89%88.pdf?forcedownload=1