Though __________ ,many laws of nature exist． -考呗网

成人英语三级

单选题 Though __________ ,many laws of nature exist．

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

【参考译文】尽管没有被发现，但是许多自然规律是存在的。
【答案解析】本题考查分词短语作状语。此句为连词加现在分词短语作状语，等于：Though the laws of nature have not been discovered，many laws of nature exist。

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