题目内容
Without facts,we can't form a worthwhile opinion for we need to have factual knowledge________our thinking.A.upon which to base B.which to be based on
C.which to base on D.to which to be based on
解析:
| A base sth.on/upon...意思是“把……基于;建立在……基础上”,“把我们的思想建立在知识的基础上”,因此base 的宾语应为our thinking,故选择A项。 |
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