单项选择题
Passage Two Questions 30 to 32 are based on the passage you have just heard.
A.It is a sign of human intelligence. B.It is something we are born with. C.It improves with constant practice. D.It varies from person to person.
A.He has distinguished himself in city management. B.He completed his higher education abroad. C.He is head of the International Police Force. D.He holds a master’s degree in criminology.