2.Harvard University(马萨诸塞州)
3.Stanford University(加利福尼亚州)
4.Columbia University(纽约州)
5.New York University
6.University of Chicago
7.University of Michigan–AnnArbor
University of Pennsylvania
9.University of Virginia
10.Duke University(北卡罗来纳州)
Northwestern University(伊利诺伊州)
