A. Western languages are superior to Eastern languages B. all languages came from grunts and groans C. the hierarchy of languages is difficult to understand D. there is no hierarchy of languages 参考答案:D 答案解析:细节理解题 本题考查主题的延伸:职业语言学家有什么观点。根据文章首段所阐明的观点:每个种族都有文化,然后第二段引人本文观点:文化无贵贱。进而引申至语言学家的观点:语言上也无贵贱之分。所以D为正确答案