coin virtual currency,　　Daxing District will firmly grasp the opportunities for the construction of Beijing Daxing International Airport and the Airport Economic Zone, serve the overall situation of national openness, continue to optimize the hardware and software environment serving international exchanges, continue to expand the breadth and depth of opening up, and enhance new advantages of international cooperation and competition. National cultural exhibitions and international communication functions will be arranged at important nodes along the South Central Axis and its extensions and transportation corridors, and a national gateway with a great country style will be constructed.