A、doctor and nurse. B、Librarian and library patron. C、Forest ranger and hiker. D、Nurse and patient. D推理判断题．对话一开始，女士说The doctor s

W: The doctor should be able to see you in a few minutes. I just need some information from you first. What seems to be the problem?
M: Well. as you can see. I’ve got a rash on my hands and arms. I think it might be some kind of allergic reaction. My roommate just got a new cat. Maybe I’m allergic to cats.
W: Hmm. Usually, allergies to animals don’t cause rashes on your hands.
M: Well, maybe I’m allergic to some kind of food, or...
W: When did you see your rash first develop?
M: On Monday. By Tuesday, it was worse, and on Tuesday night I could hardly sleep.
W: Tell me, have you been out in the woods lately?
M: Out in the woods? I went hiking Saturday. Why? I get it. You think my rash might be caused by poison ivy, right?
W: Well, it looks like that. The doctor can tell you for sure. Do you know if you came in contact with poison ivy?
M: No, because I have no idea what poison ivy looks like.
W: It grows in clusters of three leaves, and the leaves are waxy looking.
M: Well, if I do have poison ivy, what can the doctor do for me?
W: He can prescribe a lotion that will relieve the itching. But if I were you, I’d go to the library and look for some color photos of poison ivy, and try to avoid it the next time I go into the woods.
Questions:
22. What is the probable relationship between the two speakers?
23. According to the conversation, when did the man go hiking?
24. What does the woman believe is the probable source of the man’s problem?
25. What does the woman suggest the man do?