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    【题目】The world today _____ different without the amazing discoveries produced by great scientists.

    A.were B.had been C.would be D.would have been

    【答案】C

    【解析】

    试题分析：考查虚拟语气。Would be表示对目前状况的一种推测，其他选项的时态不符合句意。句意：如果没有那么多伟大的科学家们的惊人发现，今天的世界有可能会完全不同。根据句意可以判断， 故选C。

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