弱弱的问一句，什么是ME、DM、PL？

沁缘雪

以下是我的状态：现在是到了哪一步呢？
Sponsorship
1.We received your application to sponsor Danhong He on July 18, 2014.

2.We started processing your application on October 31, 2014.

3.We sent you a letter on November 14, 2014 about the decision on your application. Please consider delays in mail delivery before contacting us.

Permanent Residence
1.We received Danhong He's application for permanent residence on July 18, 2014.

2.Medical results have been received.