2009-10-03
Harry s. Truman (1884-1972) Facts Years as President: 1945-1953 Party affiliation: D...
2009-10-03
2009-10-03
Franklin Delano Roosevelt: Pearl Harbor Address to the Nation Mr. Vice President, Mr. Speaker, M...
2009-10-03
2009-10-03
2009-10-03
2009-10-03
2009-10-03
2009-10-03
比尔·盖茨在北京微软专业开发人员大会上的演讲 Keynote Speech at Microsoft Professional Developers Conference 早晨好...
2009-10-03
2009-10-03
2009-10-03