回国以后怎样可以保留绿卡?

来源: LV19 于 2011-02-23 18:28:57 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

想问如果入美国籍了, 但是回国以后怎样可以保留绿卡?

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