document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=68840\">在地底深处搜寻暗物质</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=68843\">NASA 毅力号漫游车收集了首个火星岩石样本</a></p></div>");