回複：回複：PJIang請進，3個問題請求幫助！急~

you can use consular processing to get immigration visa in US consular in China. The disvantage is you might get longer processing time and your application get more scrunizied by consular than inside US because the reason is that the US consular is located in China.

[e-mail]
谘詢, 保持移民身份, 無居留入籍, 雙重國籍, 保持中國護照 .美國公證