题目内容
Without facts,we can't form a worthwhile opinion,for we need to have factual knowledge ______ our thinking.
A. which to be based on
B. upon which to base
C. which to base upon
D. to which to be based
B
base...upon/on“以……为基础”。句意:没有事实,我们就不能形成有价值的观点,因为我们的思考要建立在客观事实的基础上。这里的结构是base our thinking on factual knowledge。
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