1, paper duplicate checking: the repeated citation part of the paper is not repeated, provided that it does not exceed the prescribed citation limit. If it exceeds the corresponding number of citation words, it is directly judged that the repetition rate of the paper is high.

2. Limit of duplicate checking: According to the specific regulations, if the whole paper is 1000 words, then the citation part cannot exceed 300 words. If the whole paragraph is quoted, the repetition rate of the whole paper will be high. If students can quote the whole paragraph, the originality of the paper will be very low, and students will have no own opinions, which will lead to the unclear theme of the paper and the final research results of the paper cannot be proved.

3. Check the content: In order to prevent plagiarism, ghostwriting, plagiarism and other academic misconduct, it is necessary to ask papers to check the content. The duplicate checking system mainly detects the contents in text form such as abstract, text, ending, sentence, table of contents, etc. But the paper is not only composed of words, a complete and high-quality paper should also include data, charts, pictures or tables. This part of the non-text content is unnecessary in most cases, and some universities or journals with higher requirements will also check the non-text content. Papers can be checked through the school's internal duplicate checking system.