J1豁免迟迟没有收到USCIS的I-797,如何打电话去USCIS查询？

来源: gimegime 于 2007-06-05 11:00:05 [旧帖] [给我悄悄话] 本文已被阅读：次

有没有USCIS的查询电话？谢谢

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