A、cough B、fever C、running nose D、headache and stomachache Dstomachache不是女士患病的症状，而应为head and bones ache。

M: Hello, Marry, I haven’t seen you in a while. What seems to be the problem?
W: Actually, I’ m a little embarrassed about coming here. I feel fine right now. But you know how much stuff is going around. Anyway, every year around the holidays, like clockwork, I come down with something.
M: So you are interested in preventions. What symptoms do you usually get?
W: You know, cough, fever, running nose, my head and bones ache, chills even. I’ m usually miserable for a week and it ends up ruining my holidays.
M: Sounds like a typical flu to me. As you said, lots of people have it. Influenza often strikes people who are overtired, stressed-out and not eating nutritious foods. And also you increase your exposure to a virus when you’ re in big crowds where lots of people are coughing and sneezing.
W: I certainly spend a lot of time in the department stores around the holidays, buying gifts for people.
M: Yes, and so you increase your exposure to air-borne viruses, just when your body resistance is already low from all of the running around you do.
W: So what can I do to ward off the flu?
M: Actually it’ s fairly simple. Get a lot of rest, eat well. That way your immune system will be bolstered, and you’ 11 be more able to fight off illness.
W: All these things make sense, but one more question. Aren’ t I bound to be sick, anyway, if there is an outbreak in the dorm?
M: You didn’t mention you live in the dormitory. In that case, I’ d also suggest you get immunized. The vaccine available prevents the three main types of influenza. Why don’ t you go to the university health center, the shots are free there.
W: I’ 11 do it right away. It would be nice to feel well during the holidays for once.
16. Why did the woman go to see her doctor?
17. How does the woman describe her health problems?
18. Which of the following is not the symptom the woman usually gets?
19. What might be a reason the woman gets ill?
20. Why does the doctor suggest the woman go to the university health center?