题目内容
Without fact, we can't form a worthwhile opinion, for we need to have factual knowledge ________ our thinking.
A.which we are based on
B.upon which we are based
C.based on
D.on which to base
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题目内容
Without fact, we can't form a worthwhile opinion, for we need to have factual knowledge ________ our thinking.
A.which we are based on
B.upon which we are based
C.based on
D.on which to base
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