2014 Sichuan Question 50 Single-choice Differentiating 2014_Sichuan卷 (英语) 49. Why did Professor Ryan conduct the recent experiment? A. To test the effect of oxytocin on the ability to recognize social interactions.B. To know the differences between friendship and competition.C. To know people's different abilities to answer questions.D. To test people's understanding of body language. Answer keyA ☆ SaveCan't do it, show the explanation查看原卷 →