第1个回答 2006-08-02
WHO | World Health Organization 世界卫生组织
第2个回答 2006-08-02
WHO | World Health Organization 世界卫生组织
第3个回答 2006-08-02
WHO | World Health Organization 世界卫生组织
第4个回答 2006-08-02
WHO = World Health Organization
第5个回答 2006-08-02
World Health Organization