试题题干
（） consists of a set of abstract rules that allow words to be combined with other words to form grammatical sentences.
参考答案
正确答案：
试题解析
句法由一系列抽象的规则组成，这些规则允许单词与其他单词组合形成合乎语法的句子。
（） consists of a set of abstract rules that allow words to be combined with other words to form grammatical sentences.
句法由一系列抽象的规则组成，这些规则允许单词与其他单词组合形成合乎语法的句子。