地缘 跨界 认同：中国朝鲜族发展历程研究：a study on the development of the Korean ethnic group in China a study on the development of the Korean ethnic group in China 自主与创新：中国广告产业发展研究：a study on the development of Chinese advertising industry 并列题名：Study on the development of Zhongyuan economic zone in China Study on the development of Zhongyuan economic zone in China 并列题名：Study on the development of health law in China