謝謝。我找了兩天了， 就是找不著，隻找到這些。

Delays In Mailing In Supporting Documentation


USCIS cannot process your case without its supporting documentation (if documentation is required). Please send in your documents soon after you have E-Filed your application. For sending your supporting documentation, please follow the instructions listed under ting Supporting Documentation

謝謝了。能否給個鏈接， 是不是隻有file過了才可以得到這個信息。