It depends on what status are you on.

來源: 於 2007-02-26 14:43:29 [舊帖] [給我悄悄話] 本文已被閱讀：次

If H1b, no much risk (either in China or Mexico), but background check is possible.

If you are on F, B,... then don't leave US before you file I-485.