A. Because technical articles are short they feature titles but no sections.
C. Scanning involves quickly looking at a text for specific information.
Explanation:
A. Technical articles are typically longer and more complex than other types of functional texts, and as such they often feature not just titles but also sections and subsections to help organize the content.
B. Bolded words are actually used to emphasize important content, not de-emphasize it.
C. Scanning is a reading technique that involves quickly looking at a text for specific information, rather than reading every word.