Staff members of the state organs use the common language of the state to perform official duties, which is conducive to showing their solemnity, seriousness, and the professional characteristics of obeying the law, law enforcement, and serving the public. At the same time, it also reflects the modern and open atmosphere and requirements. People speak Mandarin well, and using standardized words is not only a requirement of work, but also a manifestation of their own quality, taste and image. What is the main emphasis of this text? ['correct, standardized use of common language, is accurate, funny need to perform official duties.', 'Correct and standardized use of common languages is necessary to ensure the smooth flow of government orders.', 'The correct and standardized use of common languages is an example for the society.', "Correct and standardized use of common language is the need for staff's national awareness and legal awareness."]