does it mean higher the degree is, pt is more likely to have it?

所有跟帖: 

seems right. -走馬讀人- 給 走馬讀人 發送悄悄話 走馬讀人 的博客首頁 (0 bytes) () 08/20/2009 postreply 09:29:25

請您先登陸,再發跟帖!