白皮书only valid two years,you have to come back within

来源: 于 2007-05-28 20:46:29 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

2 years,then you may apply it again, usually need to wait 6 months in USA, after that you can leave almost another
2 years,no more 白皮书 approval after 2 times.