The general school will not copy the first draft of the paper, but only the final draft. However, students are generally advised to check the first draft in order to know in advance whether there are too many repetitions in the current paper. Students can upload the first draft of the paper to the paper duplicate checking system for duplicate checking. After the duplicate checking system is completed, students can check the important duplicate checking indexes such as repetition rate, citation rate and duplicate content in the duplicate checking report, and modify the paper according to the information in the report to reduce the weight, so as to ensure that the final paper can pass the proofreading smoothly.