没有任何原因收到RCIS这么个Email，最近什么也没干，这个Email是干什么的？
Application Type: I485 , APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS
Current Status: This case is now pending at the office to which it was transferred.
The I485 APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS that was transferred to our NEBRASKA SERVICE CENTER location is now pending there. You will be notified by mail when a decision is made, or if the office needs something from you. If you move while this case is pending, call customer service. We process cases in the order we receive them. You can use our processing dates to estimate when this case will be done, counting from when USCIS received it. This case is at our NEBRASKA SERVICE CENTER location. Follow the link below to check processing dates. You can also receive automatic e-mail updates as we process your case. Just follow the link below to register.
If you have questions or concerns about your application or the case status results listed above, or if you have not received a decision from USCIS within the current processing time listed*, please contact USCIS Customer Service at (800) 375-5283.