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等价类划分法是一种常见的白盒测试技术。（）
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案例分析题The Great Newspaper WarUp until about 100 years ago, newspapers in the United States appealed only to the most serious readers. They used no illustrations and the articles were__________(51)politics or business.Two men_________(52) that -Joseph Pulitzer of the New York World and William Randolph Hearst of the New York Morning Journal. Pulitzer_________(53) the New York World in 1883. he changed it form a traditional newspaper into a very_________(54) one overnight(一夜之间). He__________(55) lots of illustrations and cartoons. And he told his reporters to write articles on__________(56) crime or scandal they could find. And they did. One of them even pretended she was crazy and then she was__________(57) to a mental hospital. She them wrote a series of articles about the poor_________(58)of patients in those hospitals.In 1895, Hearst___________(59) to New York from California. He wanted the New York Morning Journal to be more sensational(轰动的) and more exciting_____________(60) the New York World. He also wanted it to be cheaper, so he_______________(61) the price by a penny. Hearst attracted attention because his headlines were bigger than_________(62). He often said, "Big print makes big news."Pulitzer and Hearst did anything they_____________(63) to sell newspapers. For example, Hearst sent Frederic Remington, the famous illustrator(插图画家), to_____________(64) pictures of the Spanish-American War. When he got there, he told Hearst that no fighting was___________(65). Hearst answered, "You furnish (提供) the pictures. I’ll furnish the war." 57（）
给出数据流图的定义，并举例说明数据的四个基本构成成份。
案例分析题Robots1 The most sophisticated(先进的)Japanese robots, which have vision systems and work at very high speeds, are still based on American designs. Studies of robots, particularly computer control software, are considered to be generally less advanced in Japan than in America or Europe.2 Although industrial robots were originally developed as devices for simply handling objects, today their commonest uses are for more skilled work like welding(焊接)，spray-painting and assembling components.3 In Britain robot sales appropriately peaked in 1984, but have been declining ever since. This is partly because British wage rates are too low to make robots financially attractive and partly because engineers now have more experience with robots and are more aware of the difficulties of introducing them effectively.4 It has been calculated that a robot uses on average about 100 times more energy than a human to do an equivalent job.5 It is estimated that 20% of all comic book heroes in Japan are robots. This is an enormous number because comics are so popular that they make up a third of all material published in Japan.6 The reliability of robots is measured in their M.T.B.F.or mean time between failures. This has risen form about 250 hours in the mid-1970s to about 10,000 hours today (equivalent to working 18 hours a day for two years). One way robot manufactures have increased reliability is to test every single component they buy, instead of the normal procedure of just testing a small sample.7 The biggest single benefit of introducing robots claimed by Japanese companies is that they increase quality control. One programmed, the robots can work more accurately and consistently than humans, who can get tired and bored. Paragraph 5（）
案例分析题New Foods and the New WorldIn the last 500 years, nothing about people---not their clothes, ideas, or languages-has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree（可可树）by South American Indians. The Spanish introduced it to the rest of the world during the 1500’s. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today.The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine(饥荒)"of 1845-1846, and thousands more were forced to leave their homeland and move to America.There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world’s largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400’s.According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one-third of the world’s population now starts the day with. According to the passage, which of the following has changed the most in the last 500 years（）
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