Administrative divisions of China By its political level, when a "city" is referred to, it can be a: By its actual area and population, it can be: When used in the statistical data, the word "city" may have three different meanings: It is important to specify the definition of "city" when referring to statistical data of Chinese cities, otherwise, confusion may arise. For example, Shanghai is the largest city in China by population in the urban area but is smaller than Chongqing by the population within the administration area. Before the establishment of the Qin Dynasty, China was ruled by a network of kings,
Smoking in China Smoking in China Smoking in China is prevalent, as the People's Republic of China is the world's largest consumer and producer of tobacco: there are 350 million Chinese smokers, and China produces 42% of the world's cigarettes. The China National Tobacco Corporation (中国烟草总公司 "Zhōngguó Yāncǎo Zǒnggōngsī") is by sales the largest single manufacturer of tobacco products in the world and boasts a monopoly in Mainland China generating between 7 and 10% of government revenue. Within the Chinese guanxi system, tobacco is still a ubiquitous gift acceptable on any occasion, particularly outside urban areas. Tobacco control legislation does exist, but public