Most of our classrooms and laboratories in Columbia University of Arts and Science are located in Fog Valley Campus, Washington, D.C. (? f？ o？ g？ g？ y？ b？ o？ t？ t？ o？ m？ c？ Answer? m？ p？ u？ s？ ), you can go to the White House, the State Council, World Bank, Smithsonian Institution, International Monetary Fund, Pew Research Center and other government agencies and cultural research centers, which is worth knowing.