xiaobaitu,Pjiang or somebody else,,,questions about Use AP back treasures2008-03-10 17:26:52

My Flight is Unite,when I come back to USA at Chiago,which line I should wait for? Is there anything different for Chiago back to USA for a person who use AP?
How many time do I have to show my AP When I come back to USA?
Frist time is ,,,,?

Second time is,,,,?

Thanks

回复：xiaobaitu,Pjiang or somebody else,,,questions about Use AP ba