据统计,世界上有2000多个民族,分布在200多个国家,基本单一民族的国家大约只有20个,其他都是多民族组成的。由此看,民族问题是一个国际性问题。“民族”这一概念的定义究竟是什么?新中国成立以来我们一直沿用苏联的说法,即“人们在历史上形成的一个有共同语言、共同地域、共同经济生活以及表现于共同文化上的共同心 According to statistics, there are more than 2,000 ethnic groups in more than 200 countries in the world. There are only about 20 countries with basically a single nationality, and the rest are multi-ethnic. From this perspective, ethnic issues are an international issue. What is the definition of the concept of ”ethnicity“? Since the founding of new China, we have always followed the Soviet statement that ”people in history have a common language, commonplace and common economic life as well as manifested in a common culture On the common heart