document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=71312\">科学家发明装置优化奥利奥饼干切分</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=71314\">郊区无人机送货是未来吗？</a></p></div>");