One. According to the query of official website of nanyang normal University, there is only one thesis topic, and the topic of graduation thesis cannot be chosen at will. It should be carefully considered from many aspects. We should proceed from our own reality, do not blindly choose, consider objective needs, and follow the principles of scientificity and feasibility. 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.