Annual report on the economic development of Yangtze River Delta 并列题名：Annual report on the economic development of Yangtze River Delta Annual report on economic development of Guangzhou in China Annual report on economic development of Guangzhou Annual report on economic development of Shanghai Annual report on the high quality development of Yangtze economic belt Annual report on economic development of China and the world. Annual report on economic development of Heilongjiang Annual report on economic development of China and the world Research on the green development of Yangtze River Delta