Problem: Given the question: Write a multi-choice question for the following article: Article: For the second time in three years, Norway's Robert Sorlie delivered a brave performance to win sled-dog racing's toughest contest--the Iditarod. The 47-year-old firefighter crossed the finish line in Nome, Alaska, at 8:39 a.m. local time Wednesday morning. "It feels good to be here," he declared, after passing the finish line. "I'm ready for breakfast." Frosty temperatures, rough land, and exhaustion couldn't break the musher , who completed the race in 9 days, 18 hours, 39 minutes, and 31 seconds. Runner-up Ed Iten finished 34 minutes later, and defending champ Mitch Seavey finished third. Sorlie took his first lead at the 365-mile mark, but fell into second place halfway through the race. With 500 miles to go, he regained the lead for good. Iditarod officials rewarded Sorlie with a generous prize of $72,066 and a new truck. But even more exciting for the winner was the historic nature of his ride. By winning this year's race, Sorlie joins a best group of mushers, becoming only the sixth person to win the Iditarod more than once. After winning several major long-distance races in Europe, Sorlie made his Iditarod first appearance in 2002, finishing in ninth place. A year later, he returned to take on the Alaskan wilderness once again, and won. Iditarod: A Quick History Since 1973, the world's top competitors have gathered in Alaska to undertake the Iditarod's 1,150-mile trail, which stretches from Anchorage to Nome. The race commemorates a group of courageous mushers and dogs. In 1925, they traveled across part of the Idit trail to deliver serum to save sick children in Nome.
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Question: How long has the Iditarod been held?Options:A Only 3 years.B Over 100 years.C About 80 years.D Over 20 years.Answer:D

Problem: Given the question: Write a multi-choice question for the following article: Article: Although we already know a great deal about flu, and although the World Health Organizations is constantly collecting detailed information from its chain of flu reference laboratories throughout the world, it is extremely difficult for epidemiologists, who study infectious diseases, to predict when and where the next flu epidemic will occur, and how serious it will be. There are three kinds of flu virus, known as A, B and C. flu C virus is ly stable and causes mild infections that do not spread far through the population. The A and B types are unstable, and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies which can be changed into immunity to that type of virus but a virus with the ability to change its character is able to bypass this protection. Variability is less developed in the flu B virus, which affects only human beings. As flu B virus may cause a widespread epidemic but will have little effect if introduced into the same community soon afterwards, since nearly everyone will have built up antibodies and will be immune. The flu A virus, which affects animals also, is extremely unstable and is responsible for some of the worst outbreaks of the disease, such as the world epidemic, of 1918&1919, when about half the world's population were infected and about twenty million people died, some from pneumonia caused by the virus itself and some from secondary complication caused by bacteria. Accurate prediction is difficult because of the complication of the factors. A particular virus may be related to one to which some of the population have partial involved immunity. The extent to which it will spread will depend on factors such as its own strength, or virulence , the ease with which it can be transmitted and the strength of the opposition it encounters . Scientists, however, have a reliable general picture of the world situation.
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Question: What does the author say about the flu B virus?Options:A B Virus is ly stable and causes mild infections that do not spread far through the population.B B Virus is unstable, and is responsible for the epidemics that cause frequent concern.C B virus is extremely unstable and is responsible for some of the worst outbreaks of the disease.D B virus has a very developed variability, and it affects only human beings.Answer:B

Problem: Given the question: Write a multi-choice question for the following article: Article: We have met the enemy, and he is ours. We bought him at a pet shop. When monkey-pox, a disease usually found in the African rain forest, suddenly turns up in children in the American Midwest, it's hard not to wonder if the disease that comes from foreign animals is homing in on human beings. "Most of the infections we think of as human infections started in other animals, " says Stephen Morse, director of the Center for Public Health Preparedness at Columbia University. It's not just that we're going to where the animals are, we're also bringing them closer to us. Popular foreign pets have brought a whole new disease to this country. A strange illness killed Isaksen's pets, and she now thinks that keeping foreign pets is a bad idea. "I don't think it's fair to have them as pets when we have such a limited knowledge of them," says Isaksen. "Laws allowing these animals to be brought in from deep forest areas without stricter control need changing," says Peter Schantz. Monkey-pox may be Researchers believe infected animals may infect their owners. We know very little about these new diseases. A new bug may be kind at first. But some strains may become harmful. Monkey-pox doesn't look a major infectious disease. But it is not impossible to pass the disease from person to person.
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Question: We learn from Paragraph 1 that the pet sold at the shop may _ .Options:A come from ColumbiaB enjoy being with childrenC prevent us from being infectedD suffer from monkey-poxAnswer:D