J—1签证豁免申请难不难?How can I do for J-1 change F-1???Thank you

来源: 于 2009-03-15 17:03:27 [旧帖] [给我悄悄话] 本文已被阅读：次

J—1签证豁免申请难不难?????? How can I do for J-1 change F-1???
Thank you