1. The title No.2 in the cover is bold and centered, and the content inside is centered on No.4..

2. Table of Contents, No.2 in bold and centered.

3. Abstract, No.2 in bold in the middle, No.4 in Song.

4. The title should be centered, and the text should be listed according to the three-level title. The first-level title, the fourth-level title, the second-level title, the fourth-level title, the fourth-level title, the third-level title should be indented by two spaces, the text should be the fourth-level title, and the line spacing should be fixed at 20 points.

5. Conclusion, bold, centered and bold type II. The content is about 300 words, the fourth font size is Song Ti, and the row spacing is fixed at 20 kg.

6. Thank you, bold, and bold in the middle. The content is smaller than the fourth song, and the spacing is fixed at 20 kg.