document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=78547\">研究发现年轻一代对单身生活更满意</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=78549\">科学家搞清楚大脑如何清除垃圾</a></p></div>");