2015 Tianjin Question 45 Single-choice Differentiating 2015_天津卷 (英语) 45.What does the passage mainly present? D . A. A new design idea of household robots.B. Marketing strategies for social robots.C. Information on household robots.D. An introduction to social robots. Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →