申請綠卡是根據出生國您應該是在中國出生的吧，那就算中國人啦

1. Do I need to go thru PERM?..........不一定

2. How long for EB2 1-140 now? ..........因人而異

3. Is it correct that I can change job 180 days after 485 has been filed? ...........對的

4. I am a Canadian citizen. Can I request consulate processing in Canada?...........也許要回中國申請 Would it be faster?..........不一定