level 1
perryw
楼主
National Academy of Sciences 146th Annual Meeting
Monday, April 27, 2009 - 9 a.m. EDT
Washington, D.C.
President Barack Obama addresses members of the National Academy of Sciences gathered at its annual meeting. Introducing Mr. Obama are National Academy of Sciences President Ralph J. Cicerone and John P. Holdren, assistant to the president for science and technology and director of the White House Office of Science and Technology Policy.
http://www.syida.com
2009年08月17日 16点08分
1
Monday, April 27, 2009 - 9 a.m. EDT
Washington, D.C.
President Barack Obama addresses members of the National Academy of Sciences gathered at its annual meeting. Introducing Mr. Obama are National Academy of Sciences President Ralph J. Cicerone and John P. Holdren, assistant to the president for science and technology and director of the White House Office of Science and Technology Policy.
http://www.syida.com
