概念错误，入境用签证，在美期间只要在签注的有效期没有过，只要递交了新申请，属于灰色期。等新签证决定。

来源: workforwal 于 2016-05-29 09:30:11 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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