19.（ ）

(单选题)21.（ ） (单选题)Which of the following can be the best title for the passage (单选题)What is the author’s main purpose of listing the examples in (单选题)What does the author say about automation in Paragraph 2? (单选题)What can we know about AI from Paragraph 1? (单选题)What is the author’s purpose in writing the text? (单选题)The underlined phrase “a silver bullet” probably means that (单选题)In the eyes of Ainsworth, his company’s technology ______. (单选题)What is the biggest advantage of kite power? (单选题)What contributes most to Dylan’s career?