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Up to now, we’ve focused on the positive impact of the automobile on society in the United States. Today we’ll look at some of the negative effects. A number of sociologists blame the automobile for the decline of the downtown areas of major cities. In the 1950’s and 1960’s,the automobile made it possible to work in the city and yet live in the suburbs many miles away. Shopping patterns changed. Instead of patronizing downtown stores, people in the suburbs went to large shopping malls built in the open areas outside the cities, where everything is cheaper. Merchants in the city failed. stores closed. Downtown shopping areas became deserted. In recent years, there has been a rebirth for a number of downtown areas, as suburb especially young married couples, have moved into the city to avoid road clogged with traffic between the suburbs and cities every morning and evening. Now let’s look at some slides that illustrate these trends. By the way, tomorrow I’ll explain the effect of all these automobiles on the environment, for example, what happens to the atmosphere as a result of burning gasoline and depletion of natural resources like fossil fuels What did the speaker probably talk about previously().
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国家标准《计算机软件产品开发文件编制指南GB8567—88》中规定，一项软件开发过程一般地说应该产生14种文件，其中管理人员主要使用的有 (1) 、 (2) 、 (3) 、开发进度月报、项目开发总结报告。开发人员主要使用的有 (1) 、 (2) 、 (4) 、数据要求说明书、概要设计说明书、详细设计说明书、数据库设计说明书、测试计划和 (5) 。维护人员主要使用的有设计说明书、 (5) 和 (3) 。 3（）
The measure of man’s real character is what he would do if he knew he would never be found out.—Thomas MacaulaySome thirty years ago, I was studying in a public school in New York. One day, Mrs. Nanette O’Neill gave an arithmetic (36) to our class. When the papers were (37) she discovered that twelve boys had made exactly the (38) mistakes throughout the test.There is nothing really new about (39) in exams. Perhaps that was why Mrs. O’Neill (40) even say a word about it. She only asked the twelve boys to (41) after class. I was one of the twelve.Mrs O’Neill asked (42) questions, and she didn’t (43) us either. Instead, she wrote on the blackboard the (44) words by Thomas Macaulay. She then ordered us to (45) these words into our exercise-books one hundred times.I don’t (46) about the other eleven boys. Speaking for (47) I can say. it was the most important single (48) of my life. Thirty years after being (49) to Macaulay’s words, they (50) seem to me the best yardstick(准绳), because they give us a (51) to measure ourselves rather than others.(52) of us are asked to make (53) decisions about nations going to war or armies going to battle. But all of us are called (54) daily to make a great many personal decisions. (55) the wallet, found in the street, be put into a pocket (56) turned over to the policeman Should the (57) change received at the store be forgotten or (58) Nobody will know except (59) . But you have to live with yourself, and it is always (60) to live with someone you respect. 60().
下面程序段的输出结果是( )。 public class Test { public static void main ( String[] args) { int result=0； for ( int i=1;i＜=5;i++) { if ( i%2==0 ) continue； result + =i; } System. out. println ("result is " + result )； } }
按制定软件工程标准的不同层次和适用范围，软件工程标准可分为5级， (1) 制定的是国际标准， (2) 是行业标准。GB1256-89对程序流程图等做了明确、具体的规定，这种标准程序流程图的特点有 (3) 、 (4) 和 (5) 。 2（）
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