OPT转F2需要哪些材料？急，多谢了

来源: chinatrust 于 2004-03-27 19:30:30 [旧帖] [给我悄悄话] 本文已被阅读：次

请问OPT转F2需要哪些材料？
从哪里下载？需不需要请律师？
多谢

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