参考答案

1. B)Why sufficient sleep is important for college students.
2. D)Making last-minute preparations for tests may be less effective than sleeping.
3. C)Whether the British Airports Authority should sell off some of its assets.
4. D)Lack of runway and terminal capacity.
5. A)Report the nicotine content of their cigarettes.
6. A)The biggest increase in nicotine content tended to be in brands young smokers like.
7. C)They were not prepared to comment on the cigarette study.
8. B)Holland.
9. C)Learning a language where it is not spoken.
10. B)Trying to speak it as much as one can.
11. D)It provides opportunities for language practice.
12. D)Rules and regulations for driving.
13. C)Make cars that are less powerful.
14. A)They tend to drive responsibly.
15. B)It is not useful.
16 C)The card reader failed to do the scanning.
17 A)By covering the credit card with a layer of plastic.
18 D)Produce many low-tech fixes for high-tech failures.
19. D)They vary among different departments.
20. C)By contacting the departmental office.
21. A)They specify the number of credits students must earn.
22 B)Students in health classes.
23 D)Its overemphasis on thinness.
24 C)To explain how computer images can be misleading.
25 A)To persuade girls to stop dieting.