The title introduction is set to bold, centered, font size 3, and line spacing 1.5 times; There are 1.5 lines before and after the paragraph. The main Chinese characters are Song Ti and Xiao Si. English is: Times New Roman, Grade Four. The first line of each paragraph of the text is indented by 2 words, in Song style, small four, 1.5 times the line spacing; There are 0 lines before and after the paragraph. Cancel the grid alignment option.

Titles are divided into four levels, which are sorted by 1, 1. 1, 1. 1 and (1) respectively. According to the paper's own situation, decide whether to adopt the four-level title. First-level title format, the left and first lines are indented, bold, No.3, 1.5 times the line spacing, and 0.5 lines before and after the paragraph. Second-level heading format, the left and the first line are indented, bold, small three, 1.5 times the line spacing, and 0.5 lines before and after the paragraph. Three-level heading format, left, first line indented, bold, No.4, 1.5 times line spacing, 0.5 lines before and after the paragraph. Four-level heading format, left, first line indented, bold, small four, 1.5 times line spacing, 0.5 lines before and after the paragraph.