回复：AP批准日期：情况较复杂

1. 如何知道AP的批准日期？收到的AP上能看到吗？现在上面的Date Issed都是Nov. 21, 2010。

-The issue date is the approval date. Obviously, it was an error in your AP issue date.

2. 移民局8/23/2010写给我的信能作为AP是8/23/2010或之前批准的证据吗？此证据下次入关时能被承认吗？如能被承认我就不会有问题了，

-Provide the the USCIS email indicating your AP approval, your AP application receipt (if possible), the approved AP and this letter to the CBP officer when you return and explain it to the officer (if necessary). I think you will be OK.

因为我8月26日才离美。