回复：请问：申请O－1问题

来源: 于 2008-12-31 10:21:11 [旧帖] [给我悄悄话] 本文已被阅读：次

申请O－1签证的难度有多大
The requierment is similar to EB1a. Same effort as if you are applying for NIW or EB1, 4 to 6 reference letters. If you do O1 and approved, you've done most of the work needed to file a successful petition of NIW or EB1.