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The conservation area is very important for preserving many animals and plants, which would ______ run the risk of becoming extinct.
A.otherwiseB.thereforeC.thoughD.instead
A

试题分析:考查副词:整句意思为“这些国家公园对保护多种动物都非常重要,而这些动物若不保护,将可能濒临灭亡。” , A. otherwise“否则”,B. therefore“因此”,C. though然而D. instead“代替,反而”,选A。
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