听下面一段对话,回答以下小题。
13. What does the man probably teach?
A.Math. | B.History. | C.Physics. |
14. What does the man think of the girl’s question?
A.It’s silly. | B.It’s difficult. | C.It’s worth asking. |
15. What can we learn about Fibonacci?
A.He was the best mathematician ever. |
B.He had poor health throughout his life. |
C.He put forward a new number sequence. |
16. What is the fifth number in the number sequence?