朋友,你的条件够申请好几个绿卡了.最好的途径是申请"outstanding researcher", 由你所在的学校作sponsor,会快也易成功.我去年绿卡获批,也是这一类别.我的经验是自己要认真对待这件事,即便是请了律师.my email is: tul02@med.nyu.edu I do not know if I can help you more. Please do not hesitate to contact me.