並前往https://ocw.niu.edu.tw/pluginfile.php/532/mod_folder/content/0/Chapter08%20%E7%B6%93%E6%BF%9F%E6%95%88%E7%8E%87-%E5%AE%8C%E6%95%B4%E7%89%88-1.pdf?forcedownload=1