Volume A is a set of comprehensive examination papers, mainly for primary school students, including Chinese, mathematics and English. The difficulty of this set of papers belongs to the middle and high level. The topic designed by it is close to the content of primary school textbooks, aiming at examining students' basic knowledge and application ability. Appropriate questions in the test paper can effectively consolidate what students have learned in class, help them lay a good foundation and improve their grades. Therefore, considering the difficulty and content of the test questions comprehensively, 53 straight A test papers can be classified as medium and high difficulty test papers.