摘要
From the Caoqiao Subway Station in southwest Beijing,it takes only 20 minutes to get to the Beijing Daxing International Airport which is located in the junction between Daxing District and Hebei Province.With this new state-of-the-art airport,which is part of the China(Hebei) Pilot Free Trade Zone(FTZ),the FTZ has become the latest test field for opening up in north China.