A.
It is currently offline.
B.
It is managed only by the university IT team.
C.
It sometimes requires emergency maintenance.
D.
It is the subject of many complaints from the university community.
正确答案:C
译文
Read an email.

Subject: Server Maintenance
The next university server maintenance is scheduled on May 22 from 2 AM to 6 AM. This is part of a scheduled maintenance that we conduct with our external provider.
During this window, access to network drives and cloud storage services will be temporarily unavailable. Please save any important documents and plan your work accordingly. You may also experience disruptions accessing your university email accounts. Online library databases will not be affected.
A reminder: Routine maintenance windows take place on a semi-monthly basis. In the event that maintenance needs arise outside of the scheduled maintenance windows, we will do our best to give the university community advanced notice.
If you experience issues, contact the IT team. We will send out another notification when maintenance is complete. We appreciate your understanding as we strive to ensure the security and reliability of our IT infrastructure.