Research on the development characteristics and effects of E-commerce in China Research on the improvement of characteristics oilseeds supple efficiency in China 并列题名：Research on the improvement of characteristics oilseeds supple efficiency in China research on the development of the dairy industry in China research on the development strategies based on patent roadmap Research on the development of cold chain logistics in China Research on the development of electronic information engineering technology in china Research on the development of commercial finance in rural China research on the development trend of Chinese film and television derivatives industry Research on development characteristics of bike-sharing in Chinese cities and its effect