8老師，
EB2的排隊，在交了485後，是否可以換工作？
-Yes, but you need to wait for the I-485 pending for more than 180 days, then you can change your job.
工作性質是否也得和原來的一樣？-Yes, it must be the same/similar field, not have to be the same job title or the same job responsibilities.
謝謝
