听力原文：(M = Jim, F = Linda) M: Hello, Linda. F: Hello, Jim. M: I'm thinking of investing in your educational computers that your company has produced and I'm interested in the advertising campaign1. F: Oh, thank you. What would you like to know? M: I've read your campaign plan. It looks OK. I only have a couple of questions, mainly about where you intend to place these advertisements. F: Well, as you can see from the plan, we intend to place them in family magazines and on early evening television5. We want the whole families, that's parents and children, to see them6. M: Humm. But are you sure they will be the right families? F: The right families? Well. . . M: I mean are you certain that the parents who read those magazines and watch those television programs are the people who will buy an educational computer for the children? F: Yes, we are quite certain. Our market research shows that. . .7 M: Good. I'm sure you're right. And I see that you're thinking of placing advertisements in teenage magazines as well. F: Yes. We intend to place them in some teenage magazines5, the more serious ones, you know. And we're also thinking of putting them in Sunday newspapers5 because it's likely that the whole family will be together on Sundays. M: I see. But do you really think that parents and their children will like the same advertisements? F: We've done research and we think they will like our advertisements7. M: Good. What is Jim interested in?