并列题名：Research on the development of China's trade in services under the measurements of trade in value-added Research on the development of China's trade in services under the measurements of trade in value-added 并列题名：Research on export development of China's goods and services trade from the perspective of intellectual property protection 并列题名：Research on the development of China's ocean energy equipment manufacturing 并列正题名：Research on the development of China's trade in creative products 并列题名：Research on the development of high-end service industry in BeiJing 并列题名：Research on the development of China's trade facilitation and the transformation and upgrading of export development model 并列题名：Research on the development of China's pension service industry 并列题名：Research on the development of China's renewable resources industry 并列题名：Report on the development index of trade in services in the world