Reference format of master's thesis literature review text (the following is an example of font size)
Introduction: Songti Primary School has 4,300-400 words.
1. First-level title (first-level title, small four, bold, upper left box, only first-level title is bold)
Content is Song Xiaosi, content is Song Xiaosi, content is Song Xiaosi.
1. 1 secondary title (secondary title, song typeface small four, left top box)
Content is Song Xiaosi, content is Song Xiaosi, content is Song Xiaosi.
1. 1. 1 three-level title (three-level title, song typeface small four, left top box)
Content is Song Xiaosi, content is Song Xiaosi, content is Song Xiaosi.
1. 1.2 three-level title (three-level title, small four in song typeface, left top box)
Content is Song Xiaosi, content is Song Xiaosi, content is Song Xiaosi.
2. First-level title (first-level title, small four, upper left corner, only first-level title is bold)
2. 1 second-level title (second-level title, song typeface small four, left top box)
2. 1. 1 three-level title (three-level title, song typeface small four, left top box)
2. 1.2 Three-level title (three-level section title, small four in song style, not bold, upper left box)
2.2 secondary title (secondary title, Xiao Si, upper left box)
2.2. 1 three-level title (three-level section title, song typeface small four, not bold, upper left box)
2.2.2 Three-level titles (three-level chapter titles, small four in song typeface, not bold, box in the upper left corner)
3. First-level title
3. 1 secondary title
3.2 Subheadings
4. Conclusion (first-level title, Xiao Si, bold, upper left box)
The content is Songti Primary Four.