If two sentences have exactly the same ideational and interpersonal functions, they would be the same in terms of textual coherence.

单项选择题American Structuralism is a branch of diachronic linguistics that emerged independently in the United States at the beginning of the twentieth century.

单项选择题Generative grammar is a system of rules that in some explicit and well-defined way assigns structural descriptions to sentences. (南开大学2004研)