Without facts, we can’t form a correct opinion, for we need to have actual knowl

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Without facts, we can’t form a correct opinion, for we need to have actual knowl

题型：不详难度：来源：
Without facts, we can’t form a correct opinion, for we need to have actual knowledge________ our thinking.
A．which to be based onB．which to base on
C．on which to baseD．which to base

答案
C
解析
base our thinking on actual knowledge “将我们的思维建立在实际的知识基础之上” , 此处为不定式短语作定语,修饰knowledge .
举一反三
He made another wonderful discovery, _________ of great importance to science.
A．which I think isB．which I think it is
C．which I think itD．I think it is

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A．whereB．whenC．thatD．whose

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There are moments         I forget all the things       happened in the past.
A．what; whichB．that; thatC．when; thatD．which; what

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A．howB．thatC．whatD．which

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A．WhatB．That C．WhichD．Where

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