"and of the numerous specialized population surveys..."

"and of the numerous specialized population surveys..."

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送交者: 4U4luC2 于 2007-05-25, 13:32:58:

回答: http://www.un.org/News/Press/docs//2007/pop952.doc.htm 由 JZ 于 2007-05-25, 13:24:07:

http://www.who.int/health-systems-performance/current_work/cw_surveyprog.htm