When the paper is submitted for review, C is postponed, and the review of the paper is divided into four grades, namely abcd. C and d indicate that the paper failed the review. When the paper is submitted for review, C is postponed. You can learn from it and write it next time. 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.