The

The_______ of the system of regional autonomy for ethnic minorities has underground long periods of exploration and practice.

foundation

establishment

setting

settlement

答案及解析：本题考查名词辨析B选项，句意为“民族区域自治制度的建立经过了长期的探索和实践”。establishment“成 立，建立”，综上，B选项正确。A选项，foundation “基础”，故排除。C选项，setting “环境，安 装”，故排除。D选项，settlement“解决，处理”，故排除。故正确答案为B项。