____________(从正反两个方面权衡这个讨论之后), it seems there are good economic and ecological reasons for sources of energy other than nuclear

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问题 ____________(从正反两个方面权衡这个讨论之后), it seems there are good economic and ecological reasons for sources of energy other than nuclear power.

选项

答案Having weighed up the arguments on both sides

解析考查现在分词短语作状语的用法，时态也要被考虑进去，从句子分析来看，需用现在完成时。

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大学英语六级

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