Title (center, small bold), author's name (No.4 Song Dynasty), author's unit, city (postal code) (No.5 Imitation of Song Dynasty), and e-mail address (No.5 Times New Rome) Abstract: This paper gives a kind of ... (No.5 in italics) margins: left and right 3. 17cm, 2.5. Header:1.7cm; ; Footer: 1.75cm 1 Introduction (No.4 Song Style, bold) Text (No.5 Song Style, two Chinese characters at the beginning of the paragraph, 1.25 times line spacing) Margins: left and right 3. 17cm, 2.5cm at the top and bottom; Header:1.7cm; ; Footer: 1.75cm 1. 1 first-level subtitle (fourth grade, song typeface, bold)1.1second-level subtitle (No.5, song typeface, bold) Chart annotation: The label of the table is above the table. In the middle, Chinese characters use Song Ti, English numerals use Times New Roman, and Roman characters use Symbol. Font size: Xiaowu. Document source tag: location: superscript; Font: Times New Roman, font size: No.5, for example, the output ranks first in China [1]. for reference only