The characteristic of books and documents is that the independence of a single book is obvious: each book usually has its own unique title, a clear and centralized theme and independent and complete content.

Compared with books, periodical literature has the characteristics of timely reporting, short publishing period, rapid publication of papers, large quantity, novel content, wide distribution and great influence, which can timely reflect the new scientific and technological achievements, new levels and new trends at home and abroad.

Related points

1. In order to make the report of the selected topic have sufficient basis, graduate students are required to make a literature review before opening the topic.

2. In the literature review, graduate students should systematically consult the domestic and foreign literature related to their own research direction. Read at least 30 articles at ordinary times, and collect documents objectively and comprehensively.

3. In the literature review, graduate students should explain the development history of their research direction, the main research achievements of predecessors, existing problems and development trends.

4. Literature review should be clear and concise.

5. Use data appropriately and reasonably. Document references are enclosed in square brackets "[]" and placed in the upper right corner of the reference.

6, literature review should have their own views and opinions. You can't confuse the author's views with the literature. Encourage graduate students to find more problems, ask more questions, and point out possible ways to analyze and solve problems, which is highly targeted.

7, literature review of not less than 3000 words.