主题：【原创】中国和美国税率的比较 -- 兰州人

http://en.wikipedia.org/wiki/United_States_Citizenship_and_Immigration_Services

Unlike most other federal agencies, USCIS is funded almost entirely by user fees. [3] Under the President's FY2008 budget request, direct congressional appropriations will make about 1% of the USCIS budget and about 99% of the budget will be funded through fees. The total USCIS FY2008 budget is projected to be $2.6 billion.[4]