How man first learnt to invent words is unknown; in other words, the origin o

游客2024-07-22  6

问题    How man first learnt to invent words is unknown; in other words, the origin of language is a mystery. All we really know is that man, unlike animals, somehow invented certain sounds to express thoughts and feelings, actions and things, so that they cou

选项 A、clearly explained in this passage
B、a matter that can not be or has not been explained or understood
C、a question that was difficult to answer
D、a problem already solved

答案 B

解析 细节推理题。文章开头就说文字是怎么发明的还是一个谜,即是没办法解释和理解的。
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