Paper format requirements:

1, cover title: No.2 bold center; Content: No.4 Song Center.

2. Table of Contents: No.2 in bold center, chapter entry: No.5 Song, line spacing: single line spacing.

3. Thesis title: small bold center.

4. Chinese abstract: No.2 bold is in the middle. Content font: Xiao No.4 Song Ti. Word count: about 300 words. Line spacing: 28 pounds. Key words: No.4 Song Style, bold. 3-5 words, leaving a space between each word.

5. Introduction No.2 is bold and centered. The content is about 500 words, the fourth ditty, with a row spacing of 28 kg.