Comparative study on ELA among China and foreign countries and districts 并列题名：Comparative study on ELA among China and foreign countries and districts Comparative study on the social role of Chinese and foreign outstanding scientists Comparative study of teaching reform in China and foreign countries Comparative study on Chinese and foreign trade union law Comparative study of Chinese and foreign valuation standards comparative study between China and developed countries Comparative study on Chinese and foreign folk cultures a comparative study of Chinese and foreign arbitration rules Comparative study of special economic zones among China and foreign countries