document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=77504\">防火墙泄漏跨国流量</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=77506\">科学家首次计算出恒星周围的含水量</a></p></div>");