You may submit the original & copy both, require the

来源: 于 2006-08-29 19:22:52 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

VO check them ,then return your original.
In US Consulate General in Guangzhou ( not embassy,US Embassy in Beijing ), VO will stamp on your copy to verify it.