回复：请教8老师和皮老师！

来源: 于 2012-04-13 20:44:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

    我收到485 approval letter后，又收到USCIS的邮件要打指纹，是什么原因？

-It is normal in some cases. Unless you receive a new biometric appointment notice, you do not need to do the fingerprinting. You may visit the USCIS local office to see what happened.

这种情况，一般需要多长时间我处理，才收到绿卡？

-Don't know.