高校H1b换研究方向不换专业会影响绿卡申请吗？

来源: chendian 于 2006-12-18 16:46:31 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.