that their friend preferred red and white wine equally这句话意思是他的朋友对于红酒白酒一样喜欢吗?原文如下:participants were asked to imagine that they were out to dinner with either a group of friends or with one friend, and that they were choosing wine for the table; they were told that half the group preferred red and half the group preferred white wine, or that their friend preferred red and white wine equally