A、Animals have emotion and social skills.B、Animals' mental experience can be tested.C、Animals' choice of partnership relies on pictures.D、Animals feel pain in the same way that humans do.
（2）、选出最佳答案（ ）
A、Identify a familiar face.B、Make a crying sound.C、Build up short-up term partnershipsD、Avoid being shut in the same stall.
（3）、选出最佳答案（ ）
A、Cows can remember what happened in the past.B、Cows are better at making friends with people.C、Cows are happy when seeing a familiar face.D、Cows have a better memory than sheep.
