题干

如图给出的是计算的值的一个程序框图,其中判断框内应填入的条件是……………………(  )

A:;

B:;

C:;

D:

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答案(点此获取答案解析)

A

同类题1

清新的回忆

  1994年8月15日,我乘坐斯堪迪纳维亚航空公司的班机从莫斯科飞抵斯德哥尔摩,这是我第一次踏上北欧的土地。常说的北欧五国包括瑞典、挪威、丹麦、冰岛和芬兰,其中前四国的语言文化相当接近;芬兰与爱沙尼亚、匈牙利的语言类似,同在印欧语系之外,所以算是北欧国家里的另类。欧洲北部的人民对四季的转换特别敏感,这也难怪,因为漫长的冬季不仅冰天雪地,而且白昼短的让人心烦。幸好,我的首次北欧之旅是在一年中最好的夏季,第一站就是美丽的瑞典首都、北方水城斯德哥尔摩。

  飞机抵达已是六七点钟,但天色仍然早得很。快捷地办好瑞典入境手续,我们推着行李车走出阿拉达机场,第一个感觉就是环境异常地整洁、空气异常地清新也许这与来自较为破旧的俄罗斯有关,但在多年后走过很多发达国家的今天,我仍清晰地记得瑞典给我的第一印象,那就是无与伦比的整洁清新。车子飞驰在从机场通往市区的高速公路,路边是一块块错落有致的田野风光,这儿一片金黄,那儿一畦碧绿,不时看见通勤或者长途的火车优雅地驶过高低起伏的原野。但抵达瑞典的第一天,我还没有见到这座北方名城的最大特色,即纵贯环绕全市的河道与海湾。好在第二天,我就坐上了观光游艇一览这个北国水城的秀色。

  斯德哥尔摩本来就是飘在海上的城市,据说全城由八九个大岛组成,崎岖海岸线边的小岛更是星罗棋布。这几天丽日晴空,正是全年的最佳旅游时节,游艇上各国游客吹着清爽的海风,面对海天一色、城在水中的美景赞不绝口。导游是个体格健壮的当地姑娘,她操着流利标准的英语向大家介绍沿途的景点。后来经过比较,我发现欧洲北部的人们说英语确实非常地道,特别与法国、东南欧相比;后来就明白其中的道理了,一是他们的母语大都与英语同属日尔曼语系,二是欧洲一体化的步伐至少在文化层面已经席卷西北欧,再有教育得力。说到瑞典姑娘,这可是个盛产西方美女的国度,从早期的电影明星嘉宝到当代风靡全球的流行歌手层出不穷,今日看到这里的如画美景似平大悟:有道是一方水土养一方人啊。再联想到瑞典人的音乐天分,这个国家的官方语言虽然不是英语,却出产了众多事誉西方的英文流行组合。瑞典的工业基础也实力强劲,一大批响当当的跨国企业都从瑞典走向世界,这也奠定了该国在本地区的老大地位。

  人杰地灵的瑞典,主要城市都面水而建,斯德哥尔摩称得上世界同类水上城市的代表作。其实不只是靠海的城市需要水。走遍全球后我总结到,凡是历史文化名城都离不开水的滋润,这水可以是天然的河道,如拥有赛纳河的巴黎;可以是人工运河,如莫斯科和阿姆斯特丹;还可以是天然或人工的湖泊,如今日的德国新都大柏林。当然海滨的名城更是数不胜数。有了水,整个城市就像人有了眼睛一样有了灵气和生机。我国的历史名称也不例外,江南水乡和京杭运河两岸曾兴起了多少美丽的城市,可惜到了近代随着河水的逐渐消失而繁华不再。想到这里,真希望我们现在还享有天赐秀川、良湖的城市如杭州、苏州、武汉、岳阳,北方的泉城济南,或祖先开凿有人工湖的北京等名城,都能珍惜这城市的性灵和生命的源泉,永葆一方生机活力。

同类题2

Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.

           If you studied pictures that ancient people left on rock walls and you tried to determine their meaning, you would not detect interest in romance among the artists. 1, you would see plenty of animals with people running after them. Life for ancient people’s earned to center on hunting and gathering wild foods for meals.

           In modern times, when food is available in grocery stores, finding love is more 2 in people’s lives. The 3is all around us. It is easy to prepare a list of modern stories having to do with love. An endless number of books and movies qualify as love stories in popular culture.

           Researchers are studying whether love, a highly valued emotional state, can be 4. They ask, what is love? Toothpaste companies want us to think attraction is all about clean teeth, but clean teeth go only so far. Scientists wonder how much the brain gets involved. You have probably heard that opposites attract but that 5attract, too. One thing is certain: The truth about love is not yet set in stone.

First Impression

           To help determine the 6 of attraction, researchers paired 164 college classmates and had them talk for 3, 6 or 10 minutes so they could get a sense of each other’s individuality. Then students were asked to7what kind of relationship they were likely to build with their partners. After nine weeks, they reported what happened.

As it turned out, their 8judgments often held true. Students seemed to9at an early stage who would best fit into their lives.

The 10 Knows

           Scientists have also turned to nonhumans to increase understanding of attraction. Many animals give off pheromones — natural chemicals that can be detected by, and then can produce a response in, other animals of the same species. Pheromones can signal that an animal is either ready to fight or is feeling 11 to partnerships. In contrast, humans do not seem to be as 12 as other animals at detecting such chemicals. Smell, however, does seem to play a part in human attraction. Although we may not be aware of chemicals like pheromones consciously, we give and receive loads of information through smell in every interaction with other people.

Face Value

           Being fond of someone seems to have a number of factors, including seeing something we find attractive. Researchers had people judge faces for 13. The participants had 0.013 seconds to view each face, yet somehow they generally considered the images the same as people who had more time to study the same faces. The way we14attractiveness seem to be somewhat automatic.

When shown an attractive face and then words with good or bad associations, people responded to 15words faster after viewing an attractive face. Seeing something attractive seems to cause happy thinking.