document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=66522\">中日探测器带回的样品或有助于揭开太阳系演化之谜</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=66525\">中国新冠疫苗接种人群达到 450 万</a></p></div>");