2022 天津 第 49 题 单选题 区分题 2022_天津卷 (英语) 49. What is the author’s purpose in writing the passage? A. To promote a new technology.B. To recommend a research team.C. To introduce a scientific discovery.D. To explain a historical phenomenon. 参考答案C ☆ 收藏不会,直接看解析查看原卷 →