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But as with many【70】, there's an unseemly back story: Experts aren't sure that these fiber-boosted foods are【71】trying.
Yes, you should eat lots of fiber. There's no question that a diet【72】in high-fiber foods is a powerful lifesaver-it's known to【73】the risk of heart disease and diabetes, and it helps【74】weight gain. Recent studies show a fiber-rich cuts the risk of breast cancer, too, and the【75】you'll develop cancer of the small intestine. But the new foods might not【76】That's【77】many of them use "isolated" fiber-stuff that's been【78】out of the foods that【79】contained it, says nutrition expert Tara Gidus, RD. Isolated fibers are【80】and don't turn juice and yogurt【81】a delicious, grainy food. The downside: There's【82】evidence that they protect【83】chronic diseases. So go【84】and try a glass of fiber-boosted grape juice, or stir some【85】into your coffee along with your artificial sweetener. Just don't forget to also eat more whole grains, beans, and fruits and vegetable-they're【86】lifesavers.
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听力原文：M: You girls really love shopping.! I'm dead tired.
W: Shop till I drop—that's my motto. There are so many items on sale. Why aren't you excited？
Q: What are the two speakers probably doing？
(13)
听力原文：M: Professor Day, may I see you for a minute？
W: Sure. Come on in. What's the matter？
M: I've got a problem. I need your technical writing class, so I went early to the registration area, but by the time I got to the front of the line, it was closed. See, my advisor signed my course request and everything.
W: That's a big class already. If it is closed, that means I have 50 students in it now.
M: I'm not surprised. It's a really good class and many students want to attend it.
W: Can't you take it next year？ We offer it every fall.
M: Well, that's the problem, I'm supposed to be graduating this spring. But, of course, I can't graduate without your class.
W: I see. In that case, I'll sign for you. It looks like there will be 51. Take this form. back to the registration area. They will get you in.
M: Thanks, Professor Day. I really appreciate this!
23. What is the problem of the student？
24.What do we know about this course？
25.What does Professor Day decide to do？
(20)
A．foodsB．vegetablesC．richesD．celebrities
What do children in hospital usually do in order to catch up with their school work？
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