which是什么意思,which怎么读

脑筋急转弯: which is faster, heat or cold?
陕旅版小学英语五年级上册lesson6_which_season_do_you_like_best
which sound do you hear the most 哪个音出现得最多?
疑问代词which与what的用法区别
英语,这里的for which 怎么用的,什么语法.求大神.