Report on the development of the Pearl River-Xijiang River economic belt Report on the development of the Pearl River-Xijiang River Economic Belt 并列题名：Report on the development of the Pearl River-Xijiang River economic belt Research on the development of modern industrial system in Yangtze River economic belt Annual report on the development of Yangtze River economic belt Nual report on the development of the Silk Road economic Belt Report on the green development of Yangtze River economic belt Annual report on the development of the Silk Road economic belt Development report of pearl river-west river economic belt 并列题名：Research on the development of modern industrial system in Yangtze River economic belt