回複：Correct link

Thank you very much.

I also found the following in the I-140 filing instruction, which suggest that you can file multiple I-140 for one beneficiary, right?
http://www.uscis.gov/portal/site/uscis/menuitem.5af9bb95919f35e66f614176543f6d1a/?vgnextoid=cfe8745543256210VgnVCM100000082ca60aRCRD&vgnextchannel=6abe6d26d17df110VgnVCM1000004718190aRCRD

Q #3. What if the petitioner wants to request consideration of multiple visa categories on behalf of an alien beneficiary? [Answer Finalized on 06/30/09]

A. If you want to classify the alien beneficiary under multiple visa preference categories, file a separate Form I-140 petition, with the required fee and supporting documentation for each requested visa category.