Though ______, many laws of nature exist.A．not having been discoveredB．having not been discoveredC．not having discovered D．having not discovered-高中英语-n多题

◎ 题干

Though ______, many laws of nature exist.

A．not having been discovered	B．having not been discovered
C．not having discovered	D．having not discovered

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◎ 解析

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◎ 知识点

根据n多题专家分析，试题“ Though ______, many laws of nature exist.A．not having been discoveredB．having not been discoveredC．not having discovered D．having not discovered…”主要考查了你对【现在分词的被动式】，【现在分词】，【不定式的被动式】，【过去分词】等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。

◎ 相似题

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