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面向数据流的设计方法定义了不同的映射方法，可以将数据流图映射和转换成 【15】 。
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Scientists at Johns Hopkins have discovered "striking" differences between men and women in a part of the brain linked with ability to estimate time, judge speed, visualize things three-dimensionally and solve mathematical problems. 47)The differences, the researchers say, may underlie well-known trends that vary by sex, such as the fact that more men than women are architects, mathematicians and race-car drivers. In a study reported this week in the Journal Cerebral Cortex, the researchers show that a brain region called the inferior parietal lobule is significantly larger overall in men than in women. The area is part of the cerebral cortex and appears on both sides of the brain just above ear-level. Also, there’s a symmetry difference, with men having a larger left IPL than right. 48) In women in the study, it’s the right IPL that’s somewhat larger, though the difference between the two sides of the brain is less obvious than in men, says psychiatrist Godfrey Pearlson, M. D. who headed the project. Researchers also compared IPL volumes on the left and the right sides of the brain. After allowances for men’s larger overall head and brain size, men had roughly 6 percent more IPL tissue than women. "The inferior parietal lobule is far more developed in people than in animals and has evolved relatively recently, "says Pearlson. 49)It allows the brain to process information from senses such as vision and touch, and enables the sort of thinking involved in selective attention and perception. Studies link the right IPL with a working memory of spatial relationships, the ability to sense relationships between body parts and awareness of a person’s own affect or feelings. The left IPL, Pearlson says, is more involved in perception, such as judging how fast something is moving, estimating time and having the ability to mentally rotate 3-D figures. "To say this means men are automatically better at some things than women is a simplification, "says Pearlson. "It’s easy to find women who are fantastic at math and physics and men who excel in language skills. Only when we look at very large populations and look for slight but significant trends do we see the generalizations. 50) There are plenty of exceptions, but there’s also a grain of truth, revealed through the brain structure, that we think underlies some of the ways people characterize the sexes."
阅读下面这篇短文，短文后有2项测试任务：(1)23～26题要求从所给的6个选项中为第2～5段第段选择1个正确的小标题；(2)第27～30题要求所给的6个选项中选择4个正确的选项，分别完成每个句子。 Earthquake 1 Every year earthquakes are responsible for a large number of deaths and a vast amount of destruction in various parts of the world. Most of these damaging earthquakes occur either in a narrow belt which surrounds the Pacific Ocean or in a line which extends from Burma to the Alps in Europe. Some of the destruction is directly caused by the quake itself. An example of this is the collapse of buildings as a result of the quake itself. Other damage results from landslides or major fires which are initiated by the quake. 2 There are about a million quakes a year. Fortunately, however, not all of them are destructive. The intensity of an earthquake is measured on the Richter Scale, which goes from 0 upward. The highest scale recorded to date is 8.9. Major damage generally occurs from quakes ranging upwards from 6.0. 3 The actual cause of the quake itself is the breaking of rocks at or below the earth’s surface. This is produced by pressure which scientists believe may be due to a number of reasons, two of which are the expansion and contraction of the earth’s crust and continental drift. 4 In order to limit the damage and to prevent some of the suffering resulting from earthquakes, scientists are working on ways to enable accurate prediction. Special instruments are used to help people record, for example, shaking of the earth. Scientists are trying to find methods that will enable them to indicate the exact time, location and size of an earthquake. 5 Certain phenomena have been observed which are believed to be the signs of imminent earthquakes. These include strange behaviours of some animals, the changes in the content of mineral water, etc. The magnetic properties of rocks may also display special pattern before major earthquakes happen. Paragraph 4 ______ .
在投资管理上，封闭式基金比开放式基金复杂。( )
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 An Early Form of Jazz Music Music comes in many forms; most countries have a style of their own. At the turn of the last century, (51) jazz was born, America had no prominent. (52) of its own. No one knows exactly when it was invented or by whom. But it began to be (53) in the early 1890s. Jazz is America’s contribution to (54) music. In contrast to classical music, which (55) formal European traditions, jazz is spontaneous and free in form. It bubbles with energy, (56) the moods, interests, and emotions of the people. In the 1920s jazz (57) like America. And so it does today. The (58) of the music are as interesting as the music itself. American Negroes, or blacks, as they are called today, were the jazz pioneers. They were brought to the Southern states (59) slaves. They were sold to plantation owners and forced to work long hours. When a Negro died his friends and relatives (60) a procession to carry the body to the cemetery. In New Orleans, a band often accompanied the (61) . On the way to the cemetery the band played slow, solemn music suited to the occasion. (62) on the way home the mood changed. Spirits lifted. Death had removed one of their number, but the living were glad to be (63) . The band played (64) music, improvising on both the harmony and the melody of the tunes (65) at the funeral. This music made everyone want to dance. It was an early form of jazz.
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