题目

简述我国民族区域自治制度的优越性。 答案：民族区域自治制度有利于维护国家统一和安全民族区域自治制度有利于保障少数民族人民当家作主民族区域自治制度有利于发展平等团结互助和谐的社会主义民族关系民族区域自治制度有利于促进我国社会主义现代化建设事业蓬勃发展_______, and students having returned, the school will start with ________ effort in the work that lies before it. A．The summer vacation is over; refreshing B．As the summer vacation over; renewed C．The summer vacation being over; renewed D．With the summer vacation being over; refreshing