Phoenix (/ˈfiːnɪks/ FEE-niks; Navajo: Hoozdo; Spanish: Fénix or Fínix,[citation needed] Walapai: Banyà:nyuwá) is the capital and most populous city of the U.S. state
of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the only U.S. state capital with a population of more than one million residents.
Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, which in turn is part of the Salt River Valley. The metropolitan area is the 11th largest by population in the United States, with approximately 4.85 million people as of 2020. Phoenix, the seat of Maricopa County, has the largest area of all cities in Arizona, with an area of 517.9 square miles (1,341 km2), and is also the 11th largest city by area in the United States. It is the largest metropolitan area, both by population and size, of the Arizona Sun Corridor megaregion.
Renqiu City is a county-level city under the jurisdiction of Cangzhou City, Hebei Province, located in the middle of Hebei Province, west of Baiyangdian, is the hometown of doctor Bian Que, Huabei Oilfield headquarters is located. The city covers an area of 1012 square kilometers and has jurisdiction over 7 streets, 9 towns, 6 townships, 2 development zones (industrial parks) and 413 administrative villages. The total population is 867148 (2013). Renqiu is located in the north-central part of the North China Plain, mainly growing wheat, corn and other food crops. Rich in underground oil and natural gas resources, it is an important oil producing area and petrochemical base in North China. Renqiu is one of the major cities and cities designated by the State Council to open to the outside world and the economic circle around Beijing and Tianjin. Since the Ninth five-year Plan, Renqiu's comprehensive strength has been in the forefront of the "top 10" counties and cities in Hebei Province, and has been listed among the top 100 counties and cities in the country for many years in a row.