which用在定于从句里后面跟的介词是根据从句里的动词来决定的
动词搭配的介词就是which 后该用的介词
I choose the house in which I can play Pingpang
I like the table to which I can see the outside
I take the means by which I can get the goal
I get the paper on which she leave the message
I choose the romm of which door is high enough