document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=64695\">纳米海绵能阻断 SARS-CoV-2 感染</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=64697\">特朗普去年提议撤销华为诉讼以换取中美贸易协议</a></p></div>");