Yes Duplicate checking, the so-called duplicate checking of papers, is to compare your own papers with the database of the paper detection system and get the similarity ratio with the major discussion libraries. Pepri, checking the weight will show the source. The paper detection system includes published literature detection, paper detection, question bank query and self-built comparison database. The published literature detection system can automatically retrieve the officially published dissertations belonging to users, detect each published literature in real time, and give the detection results quickly. Test paper detection mainly realizes real-time online test paper.