<a title="" href="../../../population/2013-12/03/content_30784323.htm" target="_blank">"单独二孩"促变婚恋生育观</a> <a title="" href="../../../population/2013-12/03/content_30784321.htm" target="_blank">人口自然增长率将增至6%-7%</a> _中国发展门户网