Comparative study on electronic contract legislation of China and EU 并列题名：Comparative study on electronic contract legislation of China and EU Comparative study of comunication education in China and UK Comparative study of communication education in China and UK Comparative study of social work education in China and US Comparative study on product defect law of China and America 并列题名：Comparative study of communication education in China and UK 并列题名：Comparative study of social work education in China and US Comparative study on financial leasing law of China and Germany Comparative study on concurrence of contractual and tortious liabilities