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来源: 于 2015-01-16 14:56:23 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

After you file a case such as I-140, etc. to USCIS, they will send you a notice (receipt, denial, or approval). This kind of notice is called I-797 (A, B or C).