Analysis:
Form of annotation
1, endnotes: endnotes are comments after the full text, which are suitable for short articles (such as this assignment).
2. Footnotes: Footnotes are the notes in the footer of each page. No matter the length of the article, they can be marked with footnotes.
3. parenthesis: parenthesis is very common in the literature review part of the paper, because there are too many references, so it is often used.