回複：感謝回帖，願聞其詳

J1 and F1 can also apply for EB GC. For NIW (EB2), EB1a, EB1b, LC is unnecessary.

Steps for EB GC
(LC) --> I140 --> I485 --> GC (in US)
(LC) --> I140 --> CP --> Visa --> GC (out of US)

Steps for family-based GC
I130 --> I485 --> GC (in US)
I130 --> CP --> Visa --> GC (out of US)