联合国有关国际组织为了加强世界环保、科技、医疗、卫生、文化、通信、人权等领域工作,确定了众多宣传日活动,每年多达几十个,以引起全人类重视和保护,许多国家也曾为其发行过邮票。我国随着改革开放的深入,经济飞速发展,综合国 Relevant international organizations of the United Nations have set up numerous publicity days so as to enhance world environmental protection, science and technology, medical care, health, culture, communications and human rights. Up to several dozen of them each year have aroused the attention and protection of all mankind. Many countries have Issued for its stamps. With the deepening of reform and opening up in our country, the economy has developed rapidly and has become an integrated country