並前往http://www3.ptgsh.ptc.edu.tw/sub/biology/ppt/%E7%8F%8A%E7%91%9A%E7%A4%81%E7%94%9F%E6%85%8B%E7%B3%BB/%E7%8F%8A%E7%91%9A%E7%A4%81%E7%9A%84%E4%B8%96%E7%95%8C.ppt