我的律师是这么说的: You have two choices when traveling (H1 and AP)........ With the advance parole, you just need the advance parole card. If you enter with the advance parole, you enter as a "parolee" , but are able to maintain H-1B status. In other words, you can continue to work in H- 1B status under the terms of you H-1B and will be able to extend your H-1B as necessary. ......(我又问了关于risk) If you enter as a parolee and your application for residence is denied before you are granted an H-1B extension , you may have to leave the US to regain your H-1B status.