判断题( )It is believed that phrase structure rules
判断题( )Language is a social activity carried out
判断题( )Some languages have ways of referring to
判断题( )Generally speaking，the standard language
判断题( )The grammatical errors that occur in
判断题( )One striking fact about the asymmetry
判断题( )Aristotle suggested that thought was the
判断题( )The error analysis approach shows that
判断题( )In medieval times，a trade language came
判断题( )The root of a word is the smallest
判断题( )The predication analysis of a sentence
判断题( )It is the property of arbitrariness that
判断题( )Morphology and syntax study the same
判断题( )Language change is different from the
判断题( )It is obvious that the standard variety of
判断题( )Searl thought that in making conversation
判断题( )The superordinate term is more general in
判断题( )Language acquisition is mainly the
判断题( )Language is arbitrary be nature．And it is
判断题( )The word knight once meant“youth”，but was