http://life.hbmy.edu.cn:8080/yxy/list.asp?id=190http://www.enshi9e.com/html/jieshao/jianjie/2005_07_27_0572717414894187_824.asphttp://www.baidu.com/s?ct=0&ie=gb2312&bs=%D3%A2%B9%FA%C8%CB%B5%C4%C3%B1%D7%D3%CE%C4%BB%AF&sr=&z=&wd=%BA%FE%B1%B1%C3%F1%D7%E5%D1%A7%D4%BA%D2%BD%D1%A7%D4%BA&cl=3&f=8