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Lenovo United States
Shop Lenovo computers. Special offers on ThinkCentre and IdeaCentre desktops and ThinkPad and IdeaPad laptops, notebooks and netbooks. For business, home and school.
HP United States
Official Hewlett-Packard site - Buy or learn about HP printers, laptops, computers, digital cameras, servers, storage, networking, software, enterprise solutions and more.
Organization of American States(美洲国家组织)
The Organization of American States (OAS) is the world's oldest regional organization, dating back to the First International Conference of American States, held in Washington, D.C., from October 1889 to April 1890.