非洲大多数国家于本世纪五、六十年代获得独立。在今天已独立的51个非洲国家中,50年代独立的有6个国家,60年代独立的有33个国家。30年过去了,非洲国家在经 Most African countries gained independence in the 1950s and 1960s. Among the 51 African countries that are independent today, there are 6 countries that were independent in the 1950s and 33 countries that were independent in the 1960s. 30 years have passed and African countries are passing through