【正确答案】Chongqing is a well-known mountain city that lies in the Southwest China in the upper reaches of the Yangtze River. Its most outstanding characteristic is that the terrain rises and falls and causes a strong three-dimensional effect. Relying on the convenience of the 'golden waterway' of the Yangtze River and the abundant resources as well as the broad market, Chongqing has been an important industrial and commercial strategic place in the upper reaches of the Yangtze River since the Han Dynasty. Now, it has even developed into a key city of economy, politics and culture incorporating heavy industry, light industry, commerce, etc. into an organic whole. There are traces of traditional Chinese culture everywhere in Chongqing. Poets of every dynasty such as Li Bai and Lu You all wrote a lot of immensely popular and beautiful articles and lines here. In addition, Chongqing is one of the major representative areas of Sichuan cuisine.