Questions 19 to 21 are based on the recording you have just heard.19. (1)A) Similarities between human babies and baby animals.B)Cognitive features of different newly born mammals.C) Adults’influence on children.D)Abilities of human babies.20. (2)A) They can distinguish a happy tune from a sad one.B)They love happy melodies more than sad ones.C) They fall asleep easily while listening to music.D)They are already sensitive to beats and rhythms.21.(3)A) Infants’facial expressions.B) Babies’emotions.C) Babies’interaction with adult.D) Infants’behaviors.Questions 22 to 25 are based on the recording you have just heard.22. (4)A) It may harm the culture of today’s workplace.B)It may hinder individual career development.C) It may result in unwillingness to take risks.D) It may put too much pressure on team members.23. (5)A) They can hardly give expression to their original views.B) They can become less motivated to do projects of their own.C) They may find it hard to get their contributions recognized.D) They may eventually lose their confidence and creativity.24. (6)A) They can enlarge their professional circle.B)They can get chances to engage in research.C) They can make the best use of their expertise.D)They can complete the project more easily.25. (7)A) It may cause lots of arguments in a team.B) It may prevent making a timely decision.C) It may give rise to a lot of unnecessary expenses.D) It may deprive a team of business opportunities.