如果重新打，還是通不過怎麽辦？Background check是不是就沒法做了？
-Then, USCIS will ask your mother to provide the non-criminal record certificate.
請問這指的是在中國還是美國？
-Both China and US.
是必須的嗎？
-Yes if the fingerprinting fails (USCIS will send RFE). No if fingerinting work.