题目内容
Without facts, we cannot 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
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题目内容
Without facts, we cannot 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
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