document.write('<a href=pro_one1.html class=a1><b>尿路</b></a><br><a href=pro_two3.html>单侧</a><br><a href=pro_two4.html>双侧</a><br><a href=pro_two5.html>定制</a><br><a href=pro_two6.html>隐形</a><br><a href=pro_one2.html class=a1><b>肛肠</b></a><br><a href=pro_two8.html></a><br>');