When writing a paper, we need to divide the content of the paper into different levels according to a certain structure and logic. These levels include title, abstract, text, references and so on. By organizing the content of the paper by levels, readers can understand the structure and content of the whole paper more clearly and read and understand it more easily.

For the paper, a reasonable hierarchical structure can help the author to better express his ideas and opinions and let readers better understand the author's intentions. At the same time, the setting of paper grade is also helpful to improve the quality of papers and make them more in line with academic norms and requirements. Therefore, it is not only necessary but also very important for academic writing to establish a reasonable hierarchical structure.

How to use various levels to improve the thesis? First of all, the whole paper should be carefully conceived and the roles at all levels should be determined. Secondly, it is necessary to accurately use the standard title and paragraph structure to ensure that the paper meets the academic requirements in form. Finally, on the basis of fixing the paper frame, pay attention to the details such as layout, typesetting and font, so as to make it more beautiful, clean and easy to read.