【正确答案】 B

【答案解析】[解析] M: Hello, Julia, I haven't seen you for a good 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 is going around. Anyway, every year around holidays like clockwork, I come down with something. M: So you are interested in prevention. 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 ends up running my holidays. M: Sounds like a typical flu to me. As you said, lots of people have it. Influenza often strikes on people overtired 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 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. Sleep well. That way your immune system will be bolstered, and you'll be more able to fend off illness. W: All these things make sense, but one more question. Aren't I bound to be sick anyway if there is a break in the dorm? M: You didn't mention you love 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'll do it right away. It'll be nice to feel well during the holidays for one.