题目内容
Without facts, we can't form a worthwhile opinion, for we need to have factual knowledge ________ our thinking.
which to base on
which to be based on
upon which to base
upon which to be based
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题目内容
Without facts, we can't form a worthwhile opinion, for we need to have factual knowledge ________ our thinking.
which to base on
which to be based on
upon which to base
upon which to be based
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||