两个I-485的困惑，请帮助！

我的I-485（EB3, PD 08/2002）今年六月递交。
但是，鉴于EB3后退，计划由丈夫申请EB1-B。
问题：
1.如果放弃我的I-485，那么做过的指纹检验和体检还有效吗？
2.收到的EAD，AP还有效吗？
3.这样做是否值得呢？

所有跟帖： 

• Just work on your Eb1b. do not withdraw your Eb3 485. I think -你奉献了吗- ♂ (168 bytes) () 09/19/2007 postreply 07:46:25

• NC,AP和 EAD都是跟A号码的 -xiaobaitu- ♀ (0 bytes) () 09/19/2007 postreply 10:08:37

• Does each applicant has an A# or each application has an A#? -H1help- ♀ (70 bytes) () 09/19/2007 postreply 10:42:42

• Each person has a single A#, So you should not withdraw Eb3 485. -你奉献了吗- ♂ (155 bytes) () 09/19/2007 postreply 12:11:38