绿卡政策续签问题

旧政策批准下来， 看到移民局那封信中说：
you have been in permannent employment of a certain extent , means you must have worked 12 consecutive months for a minimum of ten hours per week.

1. 请问part time 的工作也算吗
2. 对工资有要求吗
4. Part time 对未来申请永居有影响吗， 还是一定要找 full time。

parttime应该可以，要满足工作一年，每周10小时。