According to the function of the visual nerve cell, the characteristics of daytime scanning and night scanning techniques are （0.5分）
举一反三
- Scanning means reading in a scanning way to search for some __________.
- Techniques of Scanning include ( ) A: When reading, you should have a clear idea of what you are looking for. B: Reading the introduction and the conclusion only. C: Do not read every word. D: Scanning for text’s organization.
- scanning tunneling probe
- What is the purpose of scanning?
- What are the important benefits of scanning?