America is a typical country of immigrants. Since its founding,America has carried on a fine tradition of introducing foreign human resources. As the world's most developed country in terms of economy and science and technology,America has benefited hugely from the outstanding workforce it attracted from all over the world by using every possible means. The means include formulating open immigration policies,funding international students,conducting foreign exchanges and cooperation,establishing multinational corporations,and providing preferential and generous benefits. Its success is of grea...
