听力原文：W: There is an element there about competition then, isn't there, because British Railways are a nationalized industry. There's only one railway system in the country. If you don't like a particular kind of big beans, you can go and buy another.But if you don't like a particular railway, you can't go and use another. M: Some people who write to me say this.They say that if you didn't have a monopoly, you wouldn't be able to do the things you do. Well, I don't think we do anything deliberately to upset our customers. We have particular problems. Since 1946, when the Transport Act came in, we were nationalized. W: Do you think that's a good thing? Has it been a good thing for the railways, do you think, to be nationalized? M: Oh I think so, yes, because in general,modes of transport are all around. Let's face the fact. The car arrived. The car is here to stay. There is no question about that W: So what are you saying then? Is that if the railways haven't been nationalized, they would simply have disappeared? M: Oh, I think they would have. They're disappearing fast in America.Er, the French Railways lose 1 billion pounds a year; the German Railways, 2 billion pounds a year. But you see, those governments are prepared to pour money into the transport system to keep it going. W: So in a sense, you are caught between two extremes. On the one hand, you're trying not to lose too much money. And on the other hand, you've got to provide the best service. M: Yes, you are right. 22. Q:What does the woman say about British Railways? 23. Q: What do some people who write to the man complain about? 24. Q: What does the man say threatens the existence of railways? 25. Q: What does the man say about railways in other countries? (25)