问题 选择题

新疆建设兵团八十六团是一个哈、维、回等多个少数民族聚居的团场,近年来,八十六团通过实施国家“兴边富民”项目促进当地少数民族群众增收致富。这说明

A.民族区域自治以领土完整、国家统一为前提

B.民族平等是民族区域自治的社会和政治基础

C.民族团结是实现各民族共同繁荣的政治基础

D.我国坚持各民族共同繁荣的原则

答案

答案:D

题目分析:根据题意,题中强调新疆建设兵团为少数民族群众增收致富做出贡献,坚持了各民族共同繁荣的原则,故D入选。本题没有涉及领土完整和国家统一的信息,故排除A。BC选项与题意不符,本题没有关于民族平等、民族团结的信息,另外民族平等是民族区域自治的政治基础,但不是社会基础,故排除。

填空题
问答题

Going to the ballpark, visiting friends and playing bingo are simple diversions for many of us. But for the elderly, these social pastimes may play a critical role in preserving their physical and mental health.

(46) In fact, a new study suggests that the less time older people spend engaged in social activity, the faster their motor function tends to decline. "Everybody in their 60s, 70s and 80s is walking more slowly than they did when they were 25," says Dr. Aron Buchman, a neurologist at the Rush University Medical Center in Chicago and leading author of the study, which was published in the June 22nd issue of the Archives of Internal Medicine. (47) "Our study shows the connection between social activity and motor function--and opens up a whole new universe of how we might intervene. "

(48) An increasing body of evidence has suggested that participating in mentally stimulating activity, socializing frequently and exercising may help protect against age-related decline-at least cognitive decline. As early as 1995, neuroscientist Carl Cotman, who studies aging and dementia at the University of California at Irvine, published a paper in Nature showing that physical exercise produces a protein that helps keep neurons from dying and spurs the formation of new neural connections in the brain. (49) More recently, Cotman demonstrated in studies of elderly dogs and mice that enriching their social environment is associated with improvement in brain function.

Researchers are also finding that social activity may be linked to the same protective effect in people. A recent study of 2 500 adults ages 70 to 79, published in the journal Neurology, found that those who were able to stay mentally sharp were also those who exercised once a week or more, had at least a ninth grade literacy level and were socially active.

While further research needs to be done to establish the exact impact of social activity and exercise on specific age-related declines (50) it’s likely that a reduction in social activity may simply be a symptom of physical decline, since people may naturally withdraw from social engagement as they lose motor skills-most researchers would agree that it is not unreasonable to encourage seniors to get out there more. Only 10% of people over 65 get the recommended amount of exercise (at least 2. 5 to 5 hours a week), and given that seniors already tend to be more socially isolated than younger adults, it’s difficult to motivate them to become more active. "If you are alone, you are less likely to follow recommendations," notes Verghese. It might help, though, if you visit Grandma more often and let her know that a regular pastime may just help her stay fitter and sharper longer.

(46) In fact, a new study suggests that the less time older people spend engaged in social activity, the faster their motor function tends to decline.