一、as用于引导限制性定语从句关系代词as用于引导限制性定语从句时,它通常只用于such,same,as等之后,构成such…as,the same…as,as…as之类的固定搭配。1.用于as…as结构其中的第一个as为副词,第二个as为关系代词(在定语从句中可 A, as used to guide the restrictive attributive clause Relationship pronoun as used to guide the restrictive attributive clause, it is usually only used for such, same, as, constitute such ... as, the same ... as, as ... as and the like The fixed mix. 1. For the as ... as structure where the first as adverb, the second as a relational pronoun (in the attributive clause may be