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[] F1(OPT)->F2wawama 2004-05-26 10:32:14[] F-1->F-2困惑wawama 2004-05-14 09:21:38[] 关于OPT期满后60days grace periodwawama 2004-04-13 17:44:58[] H-1B questionwawama 2004-03-13 09:10:33[] 我该怎么办?wawama 2004-03-02 20:20:56