1. Open the document. 2. After opening, click the Insert menu above. 3. Then click the shape option in the page that opens, and click the straight line below the line in the page that appears.

Papers are often used to refer to articles that conduct research in various academic fields and describe academic research results, which are referred to as papers for short. It is not only a means to discuss problems in academic research, but also a tool to describe academic research results in academic exchanges. Including academic papers, graduation papers, dissertations, scientific papers, achievement papers and so on.