document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=83266\">航空业可通过提高效率将碳排放减半</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=83268\">聪明的狗能通过听主人谈话而掌握新名词</a></p></div>");