11.  For example, all students which live in big cities are open-minded while others have smaller field of vision.

12.  For example, the campus is larger and you have more opportunities to choose which courses you want to learn.

13.  For example, one day when I was in the canteen and I have already got my meals, I was taking my lunch and thinking about where I would sit.

14.  For example, there are usually few students studying in a big classroom and they sit far away from each other.

15.  For example, if one of our classmates gets extremely high scores on certain course, or if he/she gets a really high GPA, we may automatically consider him/her as an industrious one, even we may think he/she never plays computer games.

16.  However, in some fields, men or women are more suitable than the other, for example, in a family, husband is usually the one to fix the water pipe instead of the wife.

17.  For example, if a man wants to be a nurse that is thought to be specific to women in the past, he can just pursue it.

18.  For example, female are less aggressive and ambitious than male.

19.  For example, in ancient China, men usually did some jobs such as growing crops, hunting and fishing.

20.  For example, we can see that vast extend of works about employees during the industrial revolution are men whilst we can hardly see women carrying cargo in the harbor.