题目内容
假设信源是由g个离散符号S1，S2，…，Si，…，Sq所组成的符号集合，集合中的每个符号是独立的，其中任一个符号Si出现的概率为P(Si)，并满足∑P(Si)=1。那么符号Si含有的信息量：I(Si)等于 (17) ，单位是 (18) 。
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程序设计语言Lisp与Prolog分别是 (41) ，它们的理论基础分别是 (42) 它们的数据结构分别是 (43) ，它们的程序形式分别是 (44) ，主要应用于 (45) 。
Questions 57 to 61 are based on the following passage. Google must be the most ambitious company in the world. Its stated goal, "to organize the world’s information and make it universally accessible and useful," deliberately omits the word "web" to indicate that the company is reaching for absolutely all information everywhere and in every form. From books to health records and videos, from your friendships to your click patterns and physical location, Google wants to know. To some people this sounds uplifting, with promises of free access to knowledge and help in managing our daily lives. To others, it is somewhat like another Big Brother, no less frightening than its totalitarian (极权主义的) ancestors for being in the private information. Randall Stross, a journalist at the New York Times, does a good job of analyzing this un bounded ambition in his book "Planet Google". One chapter is about the huge data centers that Google is building with a view to storing all that information, another about the sets of rules at the heart of its web search and advertising technology, another about its approach to information bound in books, its vision for geographical information and so forth. He is at his best when explaining how Google’s mission casually but fatally smashes into long-existing institutions such as, say, copyright law or privacy norms. And yet, it’s puzzling that he mostly omits the most fascinating component of Google, its people. Google is what it is because of its two founders, Sergey Brin and Larry Page, who see themselves as kindly elites and embody the limitless optimism about science, technology and human nature that is native to Silicon Valley. The world is perfectible, and they are the ones who will do much of the perfecting, provided you let them. Brin and Page set out to create a company and an entire culture in their image. From the start, they professed that they would innovate as much in managing—rewarding, feeding, motivating, entertaining and even transporting (via Wi-Fi-enabled free shuttle buses) their employees—as they do in internet technology. If Google is in danger of becoming a caricaturez (讽刺画), this is first apparent here--in the over-engineered day-care centers, the shiatsu massages and kombucha teas (康普茶). In reality Google’s are as prone to power struggle and office politics as anyone else. None of that makes it into Mr. Stross’ account, which at times reads like a diligent summary of news articles. At those moments, "Planet Google" takes a risk similar to trying to board a speeding train: the Google story changes so fast that no book can stay up to date for long. Even so, a sober description of this moment in Google’s quest is welcome. Especially since Google fully expects, as its chief executive, Eric Schmidt, says at the end of the book, to take 300 years completing it. What does the author think of Sergey Brin and Larry Page
原型化方法是一类动态定义需求的方法，______不是原型化方法所具有的特征。与结构化方法相比，原型化方法更需要______。衡量原型开发人员能力的重要标准是______。
Passage Three Questions 33 to 35 are based on the passage you have just heard.
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