超难!定语从句1道Without fact,we can't form a worthwhile opinion,for we need to have factual knowledge _____ out thinking.a which we are based onb upon with we can basec which can we base upond to which we can base选什么?为什么?

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超难!定语从句1道Without fact,we can't form a worthwhile opinion,for we need to have factual knowledge _____ out thinking.a which we are based onb upon with we can basec which can we base upond to which we can base选什么?为什么?
超难!定语从句1道
Without fact,we can't form a worthwhile opinion,for we need to have factual knowledge _____ out thinking.
a which we are based on
b upon with we can base
c which can we base upon
d to which we can base
选什么?为什么?

超难!定语从句1道Without fact,we can't form a worthwhile opinion,for we need to have factual knowledge _____ out thinking.a which we are based onb upon with we can basec which can we base upond to which we can base选什么?为什么?
楼主应该打错了几个字母 选b 后半部分正常语序是 we can base our thinking upon factual knowledge 这个定语从句先行词是factual knowledge 用 which 而which 前的介词可以和 which 捆绑 即upon which
然后按定语从句的规则 后面剩下的部分用正常语序 we can base our thinking 形成b项

B
base on/upon是根据。。。。的意思。
句子的意思是我们需要有事实知识作为根据来司考,因此排除D,没有base to的用法,用which的定于从句,介词置于which前面,排除AC,用b

B