document.write('<a href="https://www.cma.org.cn/module/download/downfile.jsp?classid=0&amp;filename=7b22b482174e40ca9102df34710f2dc9.pdf" target="_blank" title="洪涝灾区预防性消毒技术规范">洪涝灾区预防性消毒技术规范</a>');