《三体》里20亿人到澳大利亚,这有可能实现?# Literature - 文海拾贝
m*w
1 楼
I am planning to work in China for some time
(one year or longer). I will come back 3~4 times
each year and spend a couple of weeks in the US each
time - the time intervals between two visits will be
less than 6 months. Is this sufficient to keep my
greencard? Do I have to stay in the US more than six
months each year in order to keep my greencard?
Thanks you very much!
(one year or longer). I will come back 3~4 times
each year and spend a couple of weeks in the US each
time - the time intervals between two visits will be
less than 6 months. Is this sufficient to keep my
greencard? Do I have to stay in the US more than six
months each year in order to keep my greencard?
Thanks you very much!