Inappropriate. It is a common selection method to select A and B grades in calligraphy competitions. However, this selection method is not suitable because the selection method of A and B grades has great subjectivity and uncertainty, making it difficult to objectively and fairly judge the merits of the entries. , at the same time, the selection method of Class A and Class B can easily cause dissatisfaction and distrust among contestants and audiences, and may even cause controversy and disputes, affecting the credibility and authority of the competition.