资料题：How many pounds did a patient have to pay the doctor in the town for the two visits（　）。

A farmer who lived in a small village suffered from a serious pain in his chest.This never seemed to get any better.The farmer decided that he would go to see a doctor in the nearest town.But as he was a miserly (吝啬) person, he thought he would find out what he would have to pay the doctor.He was told that a patient had to pay three pounds for the first visit and one pound for the second visit.The farmer thought about this for a long time, and then he decided to go to the doctor in the town.As he came to the doctor's consulting room (诊断室), he said,"Good morning, doctor.Here I am again.”The doctor was a little surprised.He asked him a few questions, examined his chest and then took the pound which the farmer gave him.Then the doctor said with a smile"Well, sir, there is nothing new.Please continue to take the same medicine I gave you the first time you came to see me.”