input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Snow-melting Agent A heavy snow can kill pests and this means a good harvest next year.This will bring as well as trouble to urbanites. On Nov.16,2003,a cold air current brought a heavy snow to Beijing.To prevent traffic jams,related government departments mobilized people to clear off snow on streets. One of the most effective ways to clear off snow on roads is to scatter snow-melting agent on the roads.The major component of the snow-melting agent is salt.The snow-melting agent can make snow stop from freezing,make it easier to clear off the road,and allow traffic to flow smoothly.But it also brings about some hidden dangers.In the spring of 2003,over 300 000 trees in Beijing urban districts died.After analyzing soil around these trees,experts discovered that the salt content of these soils was 392 times higher than normal.Where did the excessive salt come from?After investigating,forestry experts found that when clearing snow in the winter,people usually heap snow containing snow-melting agent at trees' roots,and that when the snow melts,this agent penetrates the soil and increases its salt content.The snow-melting agent indirectly killed the trees. Statistics show that during a heavy snow in 2002,over 1000 tons of snow-melting agent was scatterred on streets in Beijing.Snow water containing a large amount of snow-melting agent got into the soil through sewers. In addition,salt in the snow-melting agent can expedite the corrosion of steel bars in concrete buildings and cause the concrete to crack and peel,shortening the life of roads. Scientists and government officials are required to solve traffic problems caused by heavy snows as soon as possible and at the same time try to reduce the negative effects of the snow-melting agent.This is a difficult problem placed before them.Related authorities have framed some local criteria to regulate the production and use of snow-melting agents. Now,more harmless snow-melting agents are being developed.Now that even snow-melting agents that meet today's criteria must... Options: A a newspaper B a magazine on latest findings C a book on salt D a magazine on environmental protection Answer: D a magazine on environmental protection Question:???
output answer: This text most probably appears in _ .

Write a multi-choice question for the following article, with the given choices and answer: Article: Opened in 1883, the Brooklyn Bridge was the first longspan bridge to carry motor traffic, and it quickly became the model for the great suspension bridges of the following century. Spanning New York's East River, it provided the first traffic artery between Manhattan Island and Brooklyn. Before that, the only transportation was by ferries, which were slow and could be dangerous in winter. The construction of a bridge over the EastRiver had been discussed since the early 19th century, but the outbreak of the Civil War in 1861 _ all consideration of the project. When the war ended in 1865, the bridge became an important issue once more. In 1867, the New York State passed an act setting up the New York Bridge Company for the purpose of constructing a bridge between Manhattan Island and Brooklyn. John Augustus Roebling was chosen to design the bridge. Born in Germany in 1806, he held aggressive views as a student and was listed by the German police as a dangerous figure. He emigrated to America in 1830 to escape political discrimination. Roebling proposed a bridge with a span of 1,500 feet (465 m), with two towers in the East River serving as the main piers. The bridge that was actually built is longer--1,597 feet (486 m), the longest suspension bridge at that time. Options: A He participated in the Civil War and was seriously wounded. B He was the first person to propose the construction of the bridge. C He was chosen to design the bridge because of his aggressive views. D He moved to America because he was discriminated against in his home country. Answer: D He moved to America because he was discriminated against in his home country. Question:
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Answer: According to the passage, which of the following correctly describes John Augustus Roebling?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Have you lost your marbles ? Don't worry! You can buy more from Harli Jordean. Harli Jordean, the 8-year-old kid, soon to be 9, is just too lovely. He was born in Stoke Newington, London in spring 2003. He started up an Internet marble company where he sells the toys. And recently the 8-year-old student was written into the record books for being the youngest founder and chief executive officer (CEO) of an Internet company. Harli's love for marbles got rolling when he was 6. According to Tina, Harli's mother, he loved the colcorful toys so much that he would go to sleep talking about marbles and the first thing in the morning he did was talking about marbles. And his family started calling him "the Marble King". "I like the patterns and designs of marbles. You can collect hundreds of different color1s, shaps, and sizes. It's fun," Harli told WR News. "And I really enjoy looking at them, touching them, holding them, studying them and playing them with my friends." Harli Jordean's marble company has a long history. After losing his marbles to an older boy, Harli and his mom turned to the Internet for ordering more marbles. However, they couldn't find a Web site that sold the toys. That gave Harli an idea-to start a Web site where people could find different types of marbles. With his family's help, Harli created a Web site that sells marbles and marble accessories. His collection includes tiny and large marbles, along with clear and color1ful ones. Since starting his business, Harli has learned how to work with marble suppliers and fill orders. In the past two years, he's received orders from customers around the world. Some of the countries where he has sold the most marbles are Brazil, Italy, and the United States. Most kids just love marbls! So how does Harli feel about being the world's youngest CEO? "It feels marvelous . I like having my own company. I like being the boss," he says. "It really ...surprised me and probably ... my teachers too. I don't think they believed me when I used... Options: A People can buy marbles on Internet. B How to start a Web site selling marbles? C A kid became the youngest founder and CEO. D Why do kids like marbles? Answer: C A kid became the youngest founder and CEO. Question:
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The answer is:
What can be the best title of the passage?