input question: Write a multi-choice question for the following article: Article: Local businessmen are increasingly facing competition from on line retailers. Larry Pollock, owner of Camera Co/Op on South Congress, said he has been dealing with this kind of problem for years, even before the Internet. The struggle began with mail-order catalogues, which are similar to online retailers in that they have few employees to pay, no sales tax fees and no business venue to lease and manage. "Their overhead is lower, but they don't offer a service like we do," Pollock said. Pollock, however, said providing a valuable service to customers does not always guarantee continued sales. "We spend 30 minutes to an hour with somebody and they go home and buy it online," he said. According to the state comptroller's office, online shopping is developing at a more rapid rate than traditional businesses. In spite of how fair or unfair online shopping may be to the local businessmen, consumers will continue to turn to the Internet for its variety and accessibility, said Mitch Wilson, an online shopper. "You have a larger selection and it's easier to compare prices." Wilson said he built his personal computer and paid a third of the price by shopping online. "Before the Internet, I would have had to go and buy an assembled computer from somebody like Dell," he said. "Before I started shopping online I could never find all the pieces I wanted. No single store had everything needed, so shopping online saved me from having to buy from Dell." Janny Brazeal, a psychology freshman, said online shopping is too impersonal. "I'd rather see it in person, touch it, know that I'm getting it," she said. Brazeal also said she would not give out her credit card number or other personal information online no matter how safe the site claims it is.???
output answer: Question: More people like online shopping because _ .Options:A the consumers can easily compare a variety of goods on lineB it's easy for consumers to get what they wantC it's cheaper to buy what they need from on-line retailersD all aboveAnswer:D

Write a multi-choice question for the following article: Article: Since the beginning of the year, smog has covered parts of North China. In January, Beijing saw only five days without smog. The rising PM2.5 readings terrified many people, and some health experts said that whenever the smog gets serious, hospitals receive more patients suffering acute respiratory and heart diseases. Later, news of polluted underground water in some provinces scared people who wondered whether the water they drink is safe. So the need to emphasize environmental protection while developing the economy is heard everywhere. Smog is especially a common concern. As a popular online post said, air may be the only thing that is equal for everyone, despite your income or profession. People with higher incomes are able to drink only bottled spring water and eat only organic food by paying higher prices, but they breathe the same air as everyone else. At a meeting on Monday, many representatives have expressed their concerns about the air quality, too. One talked about his experience in Beijing. "After taking a taxi from the capital airport to my hotel, which took about an hour, I washed my nose and found the inside of my nose was black. We should ask ourselves this question: Why do we want to develop? It's for living a better life. Dirty air is definitely not a better life," he said. China needs to develop its economy and invest in hightech. Every Chinese has a dream to make China stronger. But without blue sky, clean water and safe food, the achievements in the economy will become meaningless. Space technologies are not to be developed for building a base on Mars so that one day all human beings can move to the red planet because they have destroyed Earth. What the public wants is a strong and beautiful China. The great efforts must be made to promote ecological progress and build a beautiful China. The words have shown the central government's determination to address the environment issue.
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Answer: Question: The effect of smog doesn't include _ .Options:A the increase of people's incomeB more people suffering diseasesC the rising of PM2. 5 readingsD patients increased in hospitalAnswer:A

Q: Write a multi-choice question for the following article: Article: Which animal has the fastest snapping jaw ? If you're guessing a shark or perhaps a larger animal, you'll have to think smaller. The trapjaw ant, which lives in Central and South America, moves its mouth parts at 35 to 63 meters per second. Another way to think about this is that the ant's jaws close at 125 to 233 kilometers per hour. That's 2, 300 times faster than the blink of an eye. Scientists were able to measure the amazing jaw speed using highspeed video techniques. Sheila Patek, a biologist, says the key is that the jaws have a springy system, which is critical in getting explosive speeds. Consider a bow and arrow. If you try to throw an arrow with your arm, it won't go very far. If you use a bow, elastic energy stored in the bow is released almost instantly when you release the arrow with your finger or a latch. The combination of the springy bow and latch mechanism is what makes the arrow zoom through the air. Maybe even more amazing than how fast these ants grab food or even enemies is how they use this same energy to move. As the ant closes its jaws, it uses them to push off the ground--all faster than the eye can see without slow motion video. A snap of the jaw can send an ant up to 8.3 centimeters into the air. That's like someone who is 1.7 meters jumping 13 meters high! Not only can they quickly escape from enemies, but often a group of ants will start jumping all at once. It would be hard for their enemies to grab just one. People have suspected the ants used their jaws to jump for over a century, but could only prove it with today's modern video equipment.
A: Question: The fast speed of the trapjaw ant's jaw lies in _ .Options:A its light bodyB its springy systemC its living environmentD the length of its jawAnswer:B

Problem: Given the question: Write a multi-choice question for the following article: Article: Scientists recently discovered that pictures on cave walls at Creswell Crags are the oldest known in Great Britain. But they didn't find out in the usual way. Archaeologists often date cave art with a process called radiocarbon dating. The technique can measure the age of carbon found in charcoal drawings or painted pictures. Carbon is an element found in many things, including charcoal and even people. But in this case, there was no paint or charcoal to test. People carved the pictures of animals and figures into the rock using stone tools. The scientists had an "aha!" moment when they noticed small rocks stuck to the top of the drawings. The small rocks must have formed after the drawings were made. "It is rare to be able to scientifically date rock art," said Alistair Pike, an archaeological scientist at Britain's University of Bristol. "We were very fortunate that some of the engravings were covered by stalagmites . When a test proved that the stalagmites formed 12,800 years ago, the scientists knew the art underneath them had to be at least that old. And some of the animals shown, like the European bison, are now extinct--another tip-off that the art is quite old. The artists came to Creswell Crags, This place is one of the farthest points north reached by our ancient ancestors during the Ice Age. At that time, much of the North Sea was dry, so people could move about more easily. Some tools and bones found there are 13,000 to 15,000 years old. They show that the travelers hunted horses, reindeer, and arctic hare. Their artwork is similar to art in France and Germany. It tells scientists that the Creswell Crags artists must have had a close connection to peoples several thousand kilometers away-another important clue to understanding how humans spread out across the world.
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The answer is:
Question: By studying the cave art, scientists know something about _ .Options:A how ancient people crossed the North SeaB why some of the animals have died outC how humans spread out across the worldD what kind of animals people hunt at that timeAnswer:C