单选题 John is reading an interesting book on evolution theory which was written by Charles Darwin，who was a British naturalist who developed a theory of evolution based on natural selection.What design feature of language is reflected in the example？( )
【正确答案】 A
【答案解析】考查语言的识别性特征。语言使用者能够以有限的语言规则为基础说出和理解无限的句子，属于语言的“创造性”特征。