63. 这次验血将检测出你对这种病是否具有免疫力。

18. I have found some articles ____ the harmful effects of drinking.

27. ____ is known to all, Mark Twain is a great American writer.

( )53. Summer jobs and internships can increase your chances of getting a great job. 

21. The cost of traveling around the eight European countries can run ____ $2,000.

20. ____ man must fear when traveling in space is radiation from the sun.

5.

17. Our department has a large collection of books, ____ are in English.

50. Now more than 22,000 places in ____ hold Junior Achievement events.

25. That T-shirt was so tight that he decided to have it ____.

66. Now that we know how an iPod shuffle works, we often have a bit of insight into the power of iPod marketing. A new study indicates that the logo on Apple products, like iPods, iPhones, iMacs, stimulates your brain. The study found that people who were shown the Apple logo scored higher on a creativity test than those who were exposed to the IBM logo, presumably because they were mirroring the traits they associate with those logos. People find that, when they think about the Apple logo, they think very strongly about association with creativity. When they think about the IBM logo, they think about the general notion of competence or being professional.

7.