2. The secondary title refers to the title with serial number (1), which is generally the same as the font size of the text, single line, and no punctuation;
3. The third-level title refers to the title with serial number 1. Generally, it is the same size and font as the text;
The main purpose of setting the subtitle is to clearly show the level of the article. Some use words, which generally express the central content of this level; Some also use numbers, which only indicate the order of "one, two, three", and play the role of connecting the preceding with the following. It should be noted that no matter which form is adopted, it is closely related to the content of the hierarchy and the close relationship between the upper and lower levels.
Extended data:
Main format requirements:
Paper text
general idea
(1) Introduction: Introduction, also known as preface, preface and introduction, is used at the beginning of the paper. The introduction should generally write the author's intention, explain the purpose and significance of the topic, and point out the scope of the paper writing. The introduction should be short and concise, and stick to the theme.
(2) Text of the paper: The text is the main body of the paper and should include arguments, arguments, argumentation process and conclusions. The main part includes the following contents:
A. Questions-arguments;
B. analyzing the problem-arguments and arguments;
C. problem solving-demonstrating methods and steps;
D. conclusion.
In order to achieve the purpose of clear hierarchy and clear context, the text is often divided into several large paragraphs. These paragraphs are called logical segments, and a logical segment can contain several small logical segments, and a small logical segment can contain one or several natural segments, so that the text forms several levels. The level of the paper should not be too much, generally not more than five levels.