听力原文：M: Good morning, Mrs. Adams. How are you today？W: Oh, not very well. I've caught

听力原文：M: Good morning, Mrs. Adams. How are you today？

W: Oh, not very well. I've caught a bad cold.

M: Have you got a temperature？

W: Yes, I've got a fever.

M: Are you coughing？

W: Yes, especially at night. It's quite bad then. And I can't go to sleep.

M: Oh, I see. I can understand that. Um, I think you've got the flu. I suggest you should not go to work, and take this medicine once every four hours.

M: What else should I do？

M: Drink more water and have a good rest.

M: OK. Thank you. Good bye!

M: Good bye!

What's the relationship between the two speakers？

A．Neighbors.

B．Doctor and patient.

C．Friends.