document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=75578\">适度运动有助于改善老年人的认知</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=75580\">外交部回应中国黑客入侵驻华大使电邮</a></p></div>");