what is GWD?

cdli2002

i am a Cai niao.  and i am preparing GMAT.

is there any NN can tell me what the GWD is? and where i can find it.

thanks a lot.

顾风

请参考：

http://forum.chasedream.com/dispbbs.asp?boardID=33&ID=102119&page=1

cdli2002

I just want to know what GWD means? I didn't find this word in your link.