Read the article and select the best answer. Article: Most people are afraid of bees. Anyone who's been stung by one quickly learns to avoid bees whenever possible. I learned that lesson when, as a child, I ran into a beehive. Dozens of bees attacked, stinging me all over my body. It was a painful incident, but I was lucky. Those bees weren't Africanized, or "killer" bees. Killer bees are extremely aggressive . When they become upset, they attack. And just about anything like noises, shiny objects, dark clothes can all cause killer bees to attack. When one killer bee stings a victim, it gives off a chemical. Other bees smell this and go into attack mode. The whole hive will aggressively attack the unfortunate victim. Killer bees will also run their victims for up to a quarter of a mile. Some victims have tried to keep away from the bees by jumping into water. But killer bees will wait for them to come up and then continue their attack. Killer bees can be found in South America and the southern prefix = st1 /United States. They were created when, in 1956, scientists brought African bees toBrazil. African bees were known to increase coffee production. Some scientists thought that these bees might increase honey production, too. So inBrazil, they tried crossbreeding the African bees with European honeybees. The results were _ The new Africanized bees actually decreased honey production and were very aggressive. Scientists tried to separate the bees, but some of them escaped and began rapidly spreading north. Since then, killer bees have been causing damage to humans, animals and the American honey industry. Over the years, these aggressive killer bees have caused nearly 10,000 people to die. What's the best thing to do if you are attacked by killer bees? Fortunately, killer bees don't fly very fast. Most healthy adults can outrun them. Experts advise you to cover your face and run! Question: We can infer from the passage that _ . Options: A: killer bees will take the place of European bees before long B: killer bees are sure to increase the production of coffee C: it is difficult to get rid of killer bees D: killer bees have caused great harm to the people there
C

Read the article and select the best answer. Article: Which is sillier: denying we ever went to the moon or trying to convince the true non-believers? Once upon a time--July 20, 1969, to be specific - two men got out of their little spaceship and wandered around on the moon for a while. Ten more men walked on the moon over the next three and a half years. The end. Unfortunately, not quite. A fair number of Americans think that this whole business of moon landings really is a fairy tale. They believe that the landings were a big hoax staged in the Mojave Desert, to convince everyone that U.S. technology was the "best" in the whole wide world. Which is the harder thing to do: Send men to the moon or make believe we did? The fact is that the physics behind sending people to the moon is simple. You can do it with computers whose entire memory capacities can now fit on chips the size of postage stamps and that cost about as much as, well, a postage stamp. I know you can because we did. However, last fall NASA considered spending $15,000 on a public-relations campaign to convince the unimpressed that Americans had in fact gone to the moon. That idea was mostly a reaction to a Fox television program, first aired in February 2001, that claimed to expose the hoax. The show's creator is a publicity hound who has lived up to the name in more ways than one by hounding Buzz Aldrin, the second man on the moon. Mr. X (as I will call him, thereby denying him the joyous sight of his name in print) recently followed Buzz Aldrin around and called him "a thief, liar and coward" until the 72-year-old astronaut finally lost it and hit the 37-year-old Mr. X in the face. Anyway, NASA's publicity campaign began to slow down. The nonbelievers took the campaign as NASA's effort to hide something while the believers said that $15,000 to convince people that the world was round -- I mean, that we had gone to the moon -- was simply a waste of money. (Actually, the $15,000 was supposed to pay for an article by James E. Oberg, an astronomy writer who, with Aldrin, has contributed to... Question: The believers think that NASA's publicity campaign is _ . Options: A: proof to hide the truth B: stupid and unnecessary C: needed to convince the non-believers D: important to develop space technology
B

Q: Read the article and select the best answer. Article: Ceaseless technology. A punishing workweek. That to -do list that keeps multiplying. It is no wonder many of us find it difficult to have a sufficient amount of sleep. But will sleeping more on the weekend make up for hours of lost snoozing ? One sleep expert, W. Christopher Winter raised the question. Sleeping binge Getting eight hours of shut-eye each night is generally recommended, but many people don't. As the week rolls from Monday to Friday, they accumulate a sleep debt. Spending a few extra hours in bed on a Saturday morning, people assume, will help them " catch up" on lost sleep. They're likely right, " Nobody knows how long the horizon is, probably a few nights, but studies show that recovery sleep in the short term does work," says Dr. Winter, a member of the American Academy of Sleep Medicine. Sleep banking Recent data suggests that banking sleep in advance of a long night can actually offset upcoming sleep deprivation . If you knew you were going to have to stay up all night on a particular day, for example, you could sleep for 10 hours a day for multiple days before the event, and be fine, Dr. Winter says. Just plan ahead. Routine naps A scheduled nap is healthier than catching up on or banking sleep. " Because sleep extension can make you feel groggy , I always recommend a short nap [if a person feels they need it ], at the same time, every day," says Dr. Winter. He adds that 25 minutes is ideal. " When you schedule a short nap, your body anticipates it and slows down, without falling into a deep dream sleep," he says. That refreshing, scheduled break is better than an occasional weekend lie-in. " The body likes routine," he says, " When it's prepared, it works more efficiently." Question: From Monday to Friday, many people _ . Options: A: accumulate a sleep debt B: have no time to sleep C: work hard to achieve their goals D: have to stay up all nights
A: A