The formulation and establishment of na(哪)as the writing norm of interrogative pronoun
Since CAI Xiaozhou(蔡晓舟)proposed to use na(哪)as a standard written form of the interrogative pronoun in 1919,there has been years before na(哪)eventually replaced na(那)as the only writing norm.In 1956,the enacted grammar on Chinese teaching and especially the employment of na(哪)in Chinese highschool textbooks indicated the establishment of na(哪)as a standard written form of interrogative pronoun.But it was only until the 1970s when such a standard was widely accepted in daily use.
万方数据
