【正确答案】正确答案：The Language Acquisition Device(LAD)is a postulated "organ" of the brain that is supposed to function as a congenital device for learning symbolic language(i. e. , language acquisition). For example, the LAD enables the children to discover their languages" structure by matching the innate knowledge of basic grammatical system to that particular language.

【答案解析】解析：(考查语言习得机制的定义)