2012年职称英语真题卫生类A(含答案解析)(11)

2012年职称英语真题卫生类A(含答案解析)

daily caffeine and many reasons to include a moderate amount in one's diet.

41. Drinking coffee or tea may help

A. lower the incidence of being overweight.

B. lower the incidence of non-melanoma skin cancer.

C. increase the incidence of endometrial cancer.

D. increase the incidence of liver cancer.

42. Caffeine is used to

A. reduce high blood pressure.

B. cure liver cancer.

C. relieve headaches.

D. treat skin cancer.

43. Some athletes use caffeine to

A. increase their endurance.

B. improve their speed.

C. maintain their alertness.

D. relax their muscles.

44. Caffeine withdrawal symptoms

A. can become an ongoing problem.

B. may last as long as a week.

C. are usually short-lived.

D. are weight loss and mental disorder.

45. Drinking three cups of coffee a day

A. may not be recommended by most doctors.

B. will probably not cause problems.

C. is harmful to healthy people.

D. may benefit sensitive people.

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The Mysteries of Nazca

In the desert of Peru, 300 kilometers from Lima, one of the most unusual artworks in the world has mystified (迷惑) people for decades.(46) But from high above, these marks are huge images of birds, fish, seashells, all beautifully carved into the earth.

The Nazca lines are so difficult to see from the ground that they weren’t discovered until the 1930s, when pilots spotted them while flying over the area. In all, there are about 70 different human and animal figures on the plain, along with 900 triangles, circles, and lines.

Researchers have figured out that the lines are at least 1,500 years old, but their purpose is still a mystery. (47) However, it would probably be very tricky to land a spaceship in the middle of pictures of dogs and monkeys.

In the 1940s, an American explorer named Paul Kosok suggested that the drawings are a chronicle (记录) of the movement of the stars and planets. (48) later, an astronomer tested his theory with a computer, but he couldn’t find any relation between the lines