Huazhong Agricultural University gave abc a blind comment. The blind evaluation results of Huazhong Agricultural University are divided into four grades: A, B, C and D. The judgment of three evaluation results: the combination of AAA, AAB, AAC, AAD, ABB or BBB is considered as passed; The combination is ABC (American Broadcasting Corporation) or BBC, which needs blind review. After the paper is submitted for review, the results will be returned in 30-40 days. Please submit the blind evaluation materials on time, and it will not be accepted after the deadline. So Huazhong Agricultural University added a blind comment to abc.