The text shows a textual structure of questions and answers.
We can see the structure of questions and answers in the text above because the author established two questions that are answered by the paragraphs that follow them.
The first paragraph answers the question "What is Acupuncture?" while the second paragraph answers the question "How does Acupuncture work?"
More information about the textual structure is in the link:
https://brainly.com/question/12053427