回複：A good article about AOS an

"Aliens in H-1B or L-1 nonimmigrant status are allowed to have dual intent, meaning that they may maintain valid nonimmigrant status even while their adjustment of status applications are pending." --- I know this is true

"it is only by using an EAD or AP that an alien forfeits his nonimmigrant status" --- Using AP will result in loss of H1B status? My school told me that I can keep and extend H1B after using AP.

It is so messed. I think that I will apply for H1B at US embassy in Beijing rather than use AP for my oncoming travel.