题目内容
M: I'd be happy to help you. What would you like to know？
W: First of all, how was the standard weight used？
M: Well, the people in our department use it to check the scales all over the country. The department of weights and measures, we are a government agency. It's our responsibility to see that all the scales measure a kilogram accurately so this is the way we use to adjust the scales.
W: How did you check the scales before？
M: We have an old standard weight that we used to use. It had to be replaced because it was imprecise. You see it was made of poor quality metal. It absorbed too much moisture.
W: Oh. So when the weather was humid it weighed more and when it was dry it weighed less.
M: Exactly. And that variation can affect the standards of the whole country. So our department had the new weight made out of higher quality metal.
W: How much did it cost？
M: About 45,000 dollars.
W: 45,000 dollars？ For a one-kilogram weight？ That's more expensive than gold. Is it really worth that much？
M: I'm sure it is. Industries depend on our government agency to monitor the accuracy of scales so that when they buy and sell their products there is one standard. Think of the drag industry, fur example, these companies rely on high accuracy scales to manufacture and package medicine.
What is the main subject of the conversation？
(23)
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【C11】
听力原文：W: Well, where did you think the theater director would be？
M: You mean Emily Thompson？ She was away attending a conference.
Q: What does the man imply？
(16)
函数f(x)=5x在区间[-1，1]上的最大值是
听力原文：W: Hello, Jim. I haven't seen you in a while. What seems to be the problem？
M: Actually I'm a little embarrassed about corning here. I feel fine right now. But you know every year around the holidays, like clockwork I come down with something.
W: So you're interested in prevention. What symptoms do you usually get？
M: You know, cough, fever, runny nose, my head and bones ache, chills even. I'm usually miserable for a week and it ends up ruining my holidays.
W: Sounds like a typical flu to me. As you said, lots of people have it and it often strikes when people are overtired, stressed out and not eating nutritious food. And also you increase your exposure to a virus when you're in big crowds where lots of people are coughing and sneezing.
M: I certainly spend a lot of time in department stores around the holidays buying gifts for people.
W: Yes. And so you increase your exposure to airborne viruses just when your body's resistance is already lower.
M: So what can I do to ward off the flu？
W: Actually it's fairly simple. Get a lot of rest, eat well. That way your immune system will be boosted. And you'll be more able to fight off illness.
M: All these things make sense. But one more question. Aren't I bound to get sick anyway if there's an outbreak in the dorm？
W: Oh, you didn't mention you lived 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.
M: I'll do it right away. It will be nice to feel well during the holidays for once.
Why did the man go to the doctor's place？
(20)
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