早上给律师发信,完全是官方回复。。
We have confirmed that your petition reached the Service Center via FedEx
during the week of April 1 to April 5th. The USCIS conducted a lottery of
the petitions received, and will be issuing either a receipt notice for
those selected, or a rejection for the petitions that were not selected.
The lottery was conducted on April 7, 2013, but it may still be a few weeks
until we receive receipt notices or rejections due to the large volume of
data entry that the USCIS will be processing.