並前往http://www3.ptgsh.ptc.edu.tw/sub/biology/ppt/%E6%A3%AE%E6%9E%97%E7%94%9F%E6%85%8B%E7%B3%BB/%E5%8F%B0%E7%81%A3%E7%9A%84%E6%A3%AE%E6%9E%97%E7%9B%B8.ppt