which to base on 和on which to base区别

问题描述:

which to base on 和on which to base区别
Without facts,we can’t form a correct opinion,for we need to have actual knowledge ______ our thinking.
选第二个
为啥?
别说第一个是错的

意义问题
第二个意思是thinking is based on knowledge
第一个就弄反了,第一个就是knowledge is based on thinking