回複：有誰有這樣的經曆,請告訴小弟

我拿著郵寄回去的回美紙再次進入美國到底有什麽---可能遇到的?怎麽樣對待?
-Based on the rule, this AP will be invalid and you might not be allowed to enter U.S. by the U.S. Customs official at the port of entry. But if you are lucky, it might work.

For the safe reason, I suggest you to go to the USCIS local office to get an emergency AP before you leave, and it may only take one or two days.