When all the processes of paper writing are completed, it is important to check the duplicate. If we don't take repeated inspections seriously, all our previous efforts will be wasted. First of all, there is no uniform numerical value as the answer to this question, because it depends on your major and the duplicate checking requirements stipulated by the school. Generally speaking, as long as the citation rate of undergraduate papers does not exceed 30%, it is good, but because of the particularity of some majors or the strict requirements of some schools for duplicate checking, this duplicate checking standard may be higher, so this value will be lower.