Analysis of test questions: the steel and coal industrial bases in the upper reaches of the Yangtze River along the Yangtze River, mainly centered on Panzhihua and Liupanshui; "Shanghai-Nanjing-Hangzhou Industrial Zone" is located along the Yangtze River, which is the largest comprehensive industrial base in China, with Wuhan as the center. The upper reaches of the Yangtze River are rich in water energy, but the transportation is inconvenient, the information is not smooth, and there is a lack of funds and technology.

Comments: This question can also examine the superior geographical position along the Yangtze River: it starts from Shanghai in the east and reaches Panzhihua in Sichuan in the west, which is a typical "banded" region. Mainly subtropical monsoon climate; The ties and radiation along the Yangtze River form a huge "H" pattern with the Yangtze River as the axis. The Yangtze River serves as a link between the east and the west and the north-south radiation of its tributaries. Four major cities along the Yangtze River and the distribution of cities and industries: (1) Four megacities: Shanghai, Nanjing, Wuhan and Chongqing; (2) Four major cities and four major urban agglomerations: the upper reaches of the Yangtze River with Chongqing as the center, the middle reaches with Wuhan as the center, the lower reaches with Nanjing as the center, and the Yangtze River Delta with Shanghai as the center. (3) Four major cities and four industrial bases along the Yangtze River: electric power and metallurgical industrial bases centered on Chongqing and Yichang; (4) Four major cities and three major acid rain areas along the Yangtze River: the southwest acid rain area with Chongqing as the center; The acid rain area in Central China with Wuhan as the center is the largest and strongest acid rain area in China. East China acid rain area centered on Shanghai-Nanjing-Hangzhou. The embryonic form of two "industrial corridors": ① the embryonic form of "steel industrial corridor" formed by Shanghai Baoshan, Anhui Maanshan, Hubei Wuhan, Chongqing, Sichuan Panzhihua and other steel industrial bases; ② The prototype of "Automobile Industry Corridor" formed by Shanghai, Nanjing and Wuhan automobile industry bases and Chongqing automobile and motorcycle bases. Eco-environmental problems and their control and protection.