单项选择题
Passage Three Questions 33 to 35 are based on the passage you have just heard.
A. The funny center starts to work. B. Two parts in the left hemispheres light up. C. The "ha-ha" response is made. D. The jokes are remembered.
A. To compete with other designers. B. To advocate self-identity. C. To sell their clothes. D. To show off their own tastes.