| 1 | | 1 Harvard University (MA) (转载) | us | 2001-08-01 |
| 2 | | 1 Princeton University (NJ) (转载) | us | 2001-08-01 |
| 3 | | 1 Yale University (CT) (转载) | us | 2001-08-01 |
| 4 | | 4 Massachusetts Inst. of Technology ( | us | 2001-08-01 |
| 5 | | 4 Stanford University (CA) (转载) | us | 2001-08-01 |
| 6 | | 6 Cornell University (NY) (转载) | us | 2001-08-01 |
| 7 | | 6 Duke University (NC) (转载) | us | 2001-08-01 |
| 8 | | 6 University of Pennsylvania (转载) | us | 2001-08-01 |
| 9 | | 9 California Institute of Technology ( | us | 2001-08-01 |
| 10 | | 10 Brown University (RI) (转载) | us | 2001-08-01 |
| 11 | | 10 Columbia University (NY) (转载) | us | 2001-08-01 |
| 12 | | 10 Dartmouth College (NH) (转载) | us | 2001-08-01 |
| 13 | | 10 Northwestern University (IL) (转载) | us | 2001-08-01 |
| 14 | | 14 Johns Hopkins University (MD) (转载 | us | 2001-08-01 |
| 15 | | 14 University of Chicago (转载) | us | 2001-08-01 |
| 16 | | 16 Emory University (GA) (转载) | us | 2001-08-01 |
| 17 | | 16 Washington University–Saint Louis | us | 2001-08-01 |
| 18 | | 18 Rice University (TX) (转载) | us | 2001-08-01 |
| 19 | | 18 University of Notre Dame (IN) (转载 | us | 2001-08-01 |
| 20 | | 20 Georgetown University (DC) (转载) | us | 2001-08-01 |
| 21 | | 20 Vanderbilt University (TN) (转载) | us | 2001-08-01 |
| 22 | | 22 University of California– Berkeley | us | 2001-08-01 |
| 23 | | 22 University of Virginia (转载) | us | 2001-08-01 |
| 24 | | 24 U. of North Carolina– Chapel Hill | us | 2001-08-01 |
| 25 | | 25 Carnegie Mellon University (PA) (转 | us | 2001-08-01 |
| 26 | | 25 Tufts University (MA) (转载) | us | 2001-08-01 |
| 27 | | 25 Univ. of California–Los Angeles (� | us | 2001-08-01 |
| 28 | | 25 University of Michigan–Ann Arbor ( | us | 2001-08-01 |
| 29 | | 29 University of Rochester (NY) (转载) | us | 2001-08-01 |
| 30 | | 29 Wake Forest University (NC) (转载) | us | 2001-08-01 |
| 31 | | 32 Univ. of California– San Diego (转 | us | 2001-08-01 |
| 32 | | 31 Brandeis University (MA) (转载) | us | 2001-08-01 |
| 33 | | 33 College of William and Mary (VA) (� | us | 2001-08-01 |
| 34 | | 34 Case Western Reserve Univ. (OH) (转 | us | 2001-08-01 |
| 35 | | 35 New York University (转载) | us | 2001-08-01 |
| 36 | | 36 Boston College (转载) | us | 2001-08-01 |
| 37 | | 36 Lehigh University (PA) (转载) | us | 2001-08-01 |
| 38 | | 36 Tulane University (LA) (转载) | us | 2001-08-01 |
| 39 | | 36 University of California– Irvine ( | us | 2001-08-01 |
| 40 | | 36 Univ. of Wisconsin– Madison (转载) | us | 2001-08-01 |
| 41 | | 41 University of Southern California ( | us | 2001-08-01 |
| 42 | | 42 Univ. of Illinois– Urbana- Champai | us | 2001-08-01 |
| 43 | | 42 Yeshiva University (NY) (转载) | us | 2001-08-01 |
| 44 | | 44 Pennsylvania State Univ. (转载) | us | 2001-08-01 |
| 45 | | 46 Georgia Institute of Technology (转 | us | 2001-08-01 |
| 46 | | 44 University of California– Davis (� | us | 2001-08-01 |
| 47 | | 47 Syracuse University (NY) (转载) | us | 2001-08-01 |
| 48 | | 47 Univ. of California– Santa Barbara | us | 2001-08-01 |
| 49 | | 49 Rensselaer Polytechnic Inst. (NY) ( | us | 2001-08-01 |
| 50 | | 50 George Washington University (DC) ( | us | 2001-08-01 |