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! Which of the following statements is true according to the passage? A) It's a better way to jump into water to escape the attack of killer bees. B) The Africanized bees did actually increase honey production though aggressive. C) Killer bees didn't attack humans, but animals. D) It is usually not easy for a killer bee to catch up with a healthy adult.
D
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... According to the writer, which of the following is to blame for the story about the hoax? A) NASA's publicity campaign. B) The Fox television program. C) Buzz Aldrin. D) James E. Oberg.
B
Q: People are talking about the "new economy." It's very different from the "old economy". In the old economy, people travel to walk. They buy things in stores. They use the post office, the fax and the telephone to send information. They see people face-to-face at their jobs or in stores. People get information from newspapers, radio, television, books and libraries. In the new economy, people do business through the "net," which is a connection of millions of computers everywhere in the world. In the new economy, workers often work at home. They can get information online. They can communicate with employers and co-workers by e-mail. Businesses have "virtual stores". They are websites on which customers can see the products. Businesses can sell to customers anywhere in the world. In the new economy, people live a fast paced, convenient and colorful life. The whole world develops more quickly than before. But the new economy is a double-edge sword. Its disadvantage is also obvious. For example, the Internet has led to a huge increase in credit card cheating. Some illegal websites offer some cheap or banned goods or services. Online shoppers who enter their credit card information may never receive the goods they want to buy and their card information could even be for sale in an illegal website. So people in the new economy should be smarter and knowledgeable. Which of the following is NOT true? A) People can get all kinds of information on the Internet. B) Telephone, radio, television, newspapers and so on will disappear in the new economy. C) People in the new economy should have high quality. D) Life in the new economy is more comfortable than the one in the old economy.
A: B