The purpose of duplicate checking is to ensure the originality and academic integrity of the paper and avoid plagiarism and other bad behaviors. It is necessary to check the first draft of the paper.

Checking the duplicate of the first draft of a paper can help the author find and correct plagiarism in the paper. In the process of writing, the author will quote other documents or learn from other people's research results, and improper use will lead to plagiarism. Through duplicate checking, these problems can be found and corrected in time to avoid more problems in subsequent revision and review.