英语四级
填空题for it 3 many organ- isms to survive under different conditions.
参考答案：暂无进入在线模考
【解析】选[M]。it为主语，此处缺少谓语，应填动词的单三形式，故[B]substitutes(代替)、[I]survives(幸存)和[M] enables(使能够)入选。此处是说，专业的适应性有很多优点，因为它能够使许多生物在不同环境下存活，故答案为[M]。
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