document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=80053\">中国劳动力人口平均年龄 39.72 岁</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=80055\">学校禁止智能手机有助于改进睡眠和情绪</a></p></div>");