document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=69493\">全球碳排放回升至疫情前的水平</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=69495\">研究人员演示太阳能碳氢化合物生产</a></p></div>");