4千对一个博士来讲也是很低很低的了吧。。

没有，一两千。。我是本科生。，，

啊，这个样子啊，祝你在职场上越来越顺利吧~

Yes, I agree with my neighbors.

Job hunting is a interactive process.
Walking-though is a good action to tell good employer from the opposite one.

Not funny, intuition normally is always right.
Trust it.

Keep rolling and
Good luck. :)