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In the sixth paragraph, by saying Danny Kowalski hated him very much and would beat him up
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Antinuclcar campaigners plan to announce that a new study shows that infant death rates downwind of eight American nuclear power plants dropped significant after they were shut down.
Some plan to use the findings to support calls for closing the nuclear reactors at Indian Point(A nuclear power station is U. S. A. ), the plant closest to New York City. But federal officials, some radiation experts and representatives of the nuclear plants and that minute, occasional releases from such plants were much lower than natural radiation levels,
The new statistical study, which is being published in Archives of Environmental Health, was conducted by a group of scientists who for many years have intended to show a link between mortality and illness and low levels of radiation from power plants, bomb tests and other sources.
The study said the infant death rate in communities for two years before the plant shutdowns averaged 8.44 deaths per l, 000 births and, when all the mortality data for two years after the plant shutdowns were combined, the infant mortality rate dropped to 7.01 per l, 000 births. The difference was statistically significant, the authors said, and the drop was greater than the general drop in infant death rates around the country in recent years.
Joseph Mangano, a public health statistician and the national coordinator for the group, said a statistical link does not prove a cause and effect, but points to the need for more work. He said," The list is literally endless. This doesn't mean we've proved anything beyond a shadow of a doubt, but what I will say is we really need to do more follow-up."
The new study was conducted by______.
（48）
在某PC上运行ipconfig /all命令得到如下结果，本机IP地址的租约期为 (66) 小时，该PC访问Web 网站时最先查询的DNS服务器为 (67) 。
（66）
Much of the new work examines attitudes that allow people to make best use of whatever mental skills they may have. One such outlook is what psychologists call "self- efficacy," the belief that one has mastery over the events of one's life and can meet a given challenge.
"People's beliefs about their abilities have a profound effect on those abilities," said Albert Bandura, a psychologist at Stanford University, who has done the major research on self-efficacy. "Ability is not a fixed property; there is huge variability in how you perform. People who have a sense of self-efficacy bounce back from failure: they approach things in terms of how to handle them rather than worrying about what can go wrong. "
In the study of exceptional managers by Drs. McClelland and Klemp, for instance, the best ones displayed a strong self-confidence, seeing themselves as the most capable person for their job and as being stimulated by crises. Along similar lines, Dr. Martin Seligman, a psychologist at the University of Pennsylvania, has shown that people who are more optimistic do better than pessimists in a wide variety of endeavors (努力) from selling insurance to achievement in school.
Self-efficacy varies from one part of a person's life to another. A self-confident manager, for instance, may feel ineffective as a father. Dr. Bandura and other researchers have found that self-efficacy acts as a powerful force in people's choices of what they will try in life and what they avoid. Many women, they have found, have a low level of self-efficacy with regard to computers or math, and so tend to shy away from careers that depend heavily on those skills.
Some of the psychologists believe that although the practical intelligence seems to come naturally to certain people, other people can be trained to be smarter in this way, to some extent. Dr. Sternberg and Dr. McClelland, for example, have worked on developing training techniques to enhance different aspects of practical intelligence.
In the passage the author ______.
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