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Pittsburgh (/ ˈ p ɪ t s b ɜːr ɡ / PITS-burg) is a city in and the county seat of Allegheny County, Pennsylvania, United States.It is the second-most populous city in Pennsylvania (after Philadelphia) and the 68th-most populous city in the U.S., with a population of 302,971 as of the 2020 census.
The languages are lost, or undocumented, or full of names they adopted back from Europeans. Generally, no matter how dumb they sound, Algonquian names documented after 1750 are probably reliable because by then hundreds of French traders spoke Algonquian languages fluently and didn't make dumb mistakes.
Xi launched the Shanghai Free-Trade Zone in 2013, which was seen as part of the economic reforms. [171] However, by 2017, Xi's promise of economic reforms was said to have stalled by experts. [ 172 ] [ 169 ] In 2015, the Chinese stock market bubble popped , which led Xi to use state forces to fix it. [ 173 ]
Graphene (/ ˈ ɡ r æ f iː n /) [1] is a carbon allotrope consisting of a single layer of atoms arranged in a honeycomb planar nanostructure. [2] [3] The name "graphene" is derived from "graphite" and the suffix -ene, indicating the presence of double bonds within the carbon structure.