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假定磁盘的移动臂现在处于第8号柱面，有如表5-4所示的6个请求者等待访问磁盘，请列出最省时间的响应次序。
　　　　　　　　　　　　　　　　　　　　　　　　　　　　表5-4 6个请求者的情况

序号柱面号磁头号扇区号
1963
2756
315206
4944
52095
67152

答案

参考答案：最省时间的响应次序是：2、6、4、1、3、5

阅读理解与欣赏

阅读下文，完成1—6题。

       小歌德是个顽皮的孩子，但好思索，好              。有一次，歌德捉到一只小麻雀，将麻雀关在小盒里仔细端详。麻雀的羽毛被小歌德弄得残缺不全，但是他仍没有找到留在脑海中问题的答案：“这柔软的肌肉里，怎么会长出羽毛呢？人的皮肉一样是柔软的，为什么却不长一根羽毛？”

       一个一个的问题在小歌德的脑海中跳跃，虽然没有答案，他仍觉得十分有趣。小歌德真是一个爱思索的孩子。

       父亲约翰发现儿子爱思索的特点，觉得他懂事了，应该让他学习了。父亲亲自做小歌德的家庭老师，教他基础知识、作文和修辞。小歌德领悟很快，对语言有一种特别的偏爱，几乎一学就会。

       10岁的某一天，父亲把儿子领进自己的藏书室。对儿子说：“从今天开始，只要你需要，这个藏书室随时对你开放。”小歌德激动得跳了起来，问爸爸：“这是真的吗？”

      “爸爸怎么会骗你呢？不过，不过你得先完成你的功课。” 

       从那以后，小歌德一有空就躲进藏书室。贪婪地阅读各种书籍，在知识的海洋里遨游。书籍，在他面前展开了一个崭新的世界，也引起他的许多               。他摸着书本想：“如果我也能写出那么多动人的诗歌、小说，就会给许多人带来美好的感受。我将来一定要成为一个伟大的作家。”

       他经常一个人躲在藏书室，阅读、朗诵，并酝酿着写诗。纯真的诗句从脑海里                到纸上，他将这些诗献给外祖父外祖母。

       外祖父读了，很高兴，亲了亲他的前额：“孩子，努力吧，你会成为一个伟大的诗人的。”

       多年以后，歌德成为德国伟大的诗人、剧作家、及思想家。

1、依次填入文中横线上的词语是

[ ]

     A．追问               奇思妙想        跳跃 

     B．刨根问底        奇思妙想        流淌 

     C．刨根问底        想法               跳跃 

     D．追问               想法               流淌

2、将文中带横线的词“贪婪”换成“聚精会神”好吗？为什么？

                                                                                                                      

3、第一二自然段写出了小歌德的什么性格特点？

                                                                                                                      

4、横线上的话揭示了歌德当时的什么心情？表现了他的什么品质？

                                                                                                                      

5、小歌德最后成了世界闻名的大诗人，他的成功，就他个人来说取决于他的哪些优良品质？

                                                                                                                      

6、小歌德的成长经历，给了你什么启示？

                                                                                                                      

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单项选择题

In one sense, we can trace all the problems of the American city back (91) a single starting point: we Americans don’t like our cities very much.
That is, on the (92) of it, absurd. After all, more than three-fourths of us now live in cities, and more are (93) to them every year. We are told that the problems of our cities are (94) more attention in Washington, and scholarship has discovered a whole new (95) in urban studies.
(96) , it is historically true: in the American psychology, the city has been a basically suspect institution, (97) with the corruption of Europe, totally lacking that sense of spaciousness and innocence of the (98) and the rural landscape.
I don’t pretend to be a scholar on the history of the city in American life. But my thirteen years in public (99) , first as an officer of the U. S. Department of Justice, then as Congressman, and now as Mayor of the biggest city in America have taught me (100) too well the fact that a p antiurban attitude (101) consistently through the mainstream of American thinking. Much of the (102) behind the settlement of America was in reaction (103) the conditions in European industrial centers and much of the theory (104) the basis of freedom in America was linked directly to the availability of land and the perfectibility of man outside the corrupt influences of the city.
What has this to do with the predicament of the modern city I think it has (105) to do with it. For the fact is that the United States (106) the federal government, which has historically established our national priorities, has simply never thought that the American city was "worthy" of (107) —at least not to the (108) of expending any basic resources on it.
Antipathy to the city predates the American experience. When industrialization (109) the European working man into the major cities of the continent, books and pamphlets appeared (110) the city as a source of crime, corruption, filth, disease, vice, licentiousness, subversion, and high prices.

A．Nonetheless

B．But

C．Furthermore

D．Although
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