user: Article: A Two-day Trip to Beijing If you want to know about China. Please come to Beijing. You can visit the Great Wall and other places of interest and enjoy Beijing Duck. Time: May 6~May 7 Price: 480 yuan per person  Tel: 78456895 A Four- day Trip to Qinhuangdao If you like warm weather and clean city, Qinhuangdao is a good place for you. You can climb mountains, enjoy beautiful beaches and go to the zoo. Time: May 1~May 4  Tel: 56478445 Adult: 780 yuan per person Child: 550 yuan per person E-mail: 126yc@sina.com A Seven-day Trip to Sanya There are many beautiful places in Sanya. You can walk along the beaches, go fishing and go boating. Time: May 10~May 17 Price: 1 person: 650 yuan per person 2-5 persons: 600 yuan per person 6-9 persons: 550 yuan per person Call us at 800-820-8199. Question: If you want to go on a trip on Saturday and Sunday, you can choose   a trip to   _  . Yes or no, is the answer "Beijing"?
Yes

Article: An atlas is a book of maps. Atlases are made with different kinds of information about different parts and areas of a country or the world. They are prepared for desk use or travel use. Desk atlases are made for different groups of people with different needs. For example, students may use desk atlases to help learn geography, and other people may use desk atlases to study a place. A popular type of the latest atlas shows the recent fact of the world. New atlases are often carefully produced to help people learn about the changes, such as the name changes, boundary  changes and other important new information. A desk atlas can also have some different maps of the same place. For example, an atlas may include maps showing population and important products of a place. Travel atlases usually show the information about both natural and man-made features . So it is not surprising to find universities, airports, forests, rivers, roads as well as cities, towns and villages in them. A travel atlas is often the first thing people need when they want to start a trip in a strange place. It often has a map of a whole country, and a map with more special information of each important place in the country. Take the atlas of the United States as an example, it often has a map of the whole country and then a map of each of the fifty states. A travel atlas may also point out the beautiful natural places. In the US, the atlas may include national parks such as the Yellow Stone Park and some others to show the beauty of nature and interesting places to tourists. Question: How many kinds of atlases are mentioned in the passage? Yes or no, is the answer "Two"?
No

Q: Article: The question whether there is life on Mars   has made the public think a lot for more than a century. The closest look showed Mars to be a dusty, cold world, covered by air too thin to breathe. A British spaceship and Europe's Mars spaceship plan to land on Mars or enter orbit   around it. One of the NASA's   spaceships is expected to land on January 3, the other is going to land on the opposite side of Mars on January 24. Since 1960, over twenty spaceships sent to Mars have failed. Most have been lost on flying up or landing because those are the most difficult times of any flights.     Scientists wanted to find out whether there was water in Mars. In October, a team of scientists reported that Mars had been a dry wasteland. But weeks later, a second team reported differently that they had found some marks showed clearly that they were made by the rivers. Such marks told us that Mars was a warmer place billions of years ago -- just as life first appeared here on Earth. Scientists at once raise a question: if what they said is true, what happened on Mars? Then what about the earth? Question: What are scientists worried about when they raise the question? Yes or no, is the answer "The earth might be changed like Mars"?
A: No

Question: Article: That warm day was the only day of the week without rain. I opened the door, took a seat and began to enjoy the wonderful sunshine. Suddenly, I noticed that the house near mine had been sold. An elderly lady was in front of the door, with some beautiful flowers beside her. I walked to her. She looked to be in her early eighties and had the prettiest white hair. "Hi! My name is Karmen," I said smiling brightly at the old lady. She smiled back and said, "Hello, Karmen. I'm Henrietta." Her voice was very strong for someone at her age. Later, I learned she was alone and had no family or relatives to help her. From that day on, I often visited her and helped her with her housework and sometimes she gave me some delicious food. A year passed, and I considered Henrietta to be one of my best friends. One day, I walked over for my morning visit and knocked on the door, but there was no answer. I knocked again, and she still didn' t _ . So I let myself in, using the key she had given me. I checked her living room and then her kitchen. I finally went into her bedroom, and she was lying peacefully on her bed. Beside her there were two notes. One was her will, which said all that she had would be given to me. The other was a thank-you note. I went to her bedside and cried sadly. Though several years have gone by, I still miss her deeply. Whenever I look at the beautiful flowers in front of her house, I remember the wonderful friendship we had. Question: In order to thank the writer, the old lady decided to   _  . Yes or no, is the answer "leave all that she had to the writer."?
Answer: No

Article: Fishing is a popular activity and every fisherman knows the rule: Keep the big ones, throw the smaller ones back. The idea behind Lt is simple - the larger fish are probably older. If you keep the smaller ones, they won't be able to reproduce, and the fish population is in danger. But fishing out the largest fish from a population has an unwanted effect: Over time, fewer adult fish get really big. If only the smaller fish reproduce , then future generations become smaller. This is an example of evolution  in action. One scientist, Dr David Conover has spent the last decade studying the effects of the "keep the big ones" rule and if they can be reversed . To set up his experiment, Conover and his team caught hundreds of silverside fish and divided them into six groups. For two groups, Conover followed the "keep the large ones" rule and took out the biggest fish. For two other groups, he removed only the small fish. For the last two groups, he removed fish at random  . After five years, he measured the fish in each group. In the two groups where the largest fish were regularly removed, the average fish size was smaller than the average size in the other groups. Here was evolution in action: If only small fish survive to reproduce, then future generations of fish will also tend to be small. For the second five years of his experiment, Conover changed the rules and took fish randomly from each group. At the end of the experiment, he found that the fish that were in the "keep the large ones" group for the first five years had started to get larger again, although he calculated it would take at least 12 years for the fish in that group to return to their original size. In other words, it takes less time to shrink  than it does to recover. Question: What did Conover find after the first five years of his experiment? Yes or no, is the answer "The "keep the big ones" rule made fish smaller on average."?


assistant: No