问答题劳动力的定义是可以工作和赚取收入的总人数。这定义包括所被雇用的每个人或者说所需要支付的雇用，所以它包括雇用者和自我雇用者。 尽管劳动力的总数在很大的程度上取决于人口总数，但它同样受其他因素的影响。总人数的年龄分布状态对可利用的劳动力有很大的影响。如果人口中有很大一部分年龄很小或者很大，那么它的可利用劳动力的总数就要比年龄分布平均的可利用劳动力的总数低。如果人数自然增长，也就是说出生数远大于死亡人数，那么随着总人数增加，劳动力的总数就会减少。 有时人口可描述为人口老化，意思就是当出生率下降或增长得很慢的时候，有人退休而又无足够的年轻人代替那些即将离开的人，这就形成了人口老龄化。所以当人口增长快或出生率下降的时候，劳动力的人口百分比就会下降。 人口年龄的分布会对经济产生影响。如果人口老化，退休人员增加而无新成员的加入时，就会产生为退休人群提供合理化社会服务的经济问题。如果老人需要在特殊的老人之家或旅馆得到关怀和照顾，必须有足够的资金来保障这种服务。如果相比较于总人数，劳动力的总数太小，政府的税收就会相应地减少。政府就会减少资金的投入，或者工作人员的税收将会增加。

问答题We are learning new computer knowledge everyday. The technology, which has already transformed newspapering, doesn"t sit still. We journalists have ceased all that grieving about how we were going to hang on to our typewriters and how this new staff was simply barbaric, an affront to the very concept of the written word. 6 That"s gone, as everything we know about human history should have told us that in all the current worries over problems created by the arrival of the computer age, one thing that should be exempted from worry is the capacity of human beings to adapt to it. Our grandparents, for instance, easily traversed lifetimes that saw at least as much astonishing change as we have—from horse—drawn carriages to jet air travel, from pre-telephone communication by written letter to communication by car phone, or fax. 7 Just as people around the world have in recent times shown themselves remarkably able to accommodate this kind of rapid change, so it didn"t ever seem to trouble them. They absorbed the developing bounty without a peep and quickly came to depend on it, even though it collapsed all their accustomed notions of time and distance. 8 The human machine, in this infinite ability to adjust to radically changed environments, seems considerably more wondrous than the invented machine. But it is not the individual human ability to adapt that is the problem in the new age. Rather, the problem is the ability of our institutions and economics and societies to do so. 9 No matter how upbeat one is about all the blessings that flow to this country from the new technology in terms of teaching, medicine, marketing, law enforcement and the rest, it is necessary to acknowledge that the blessing is mixed. You can accept that in the long run jobs will be created, not lost, as a result of the innovation. But in the short run there is bound to be economic displacement and loss. 10 You can also believe that our legal systems can in time withstand the challenge all this presents and still acknowledge that at least for the moment iudicial problems have been created by it in the realms of privacy, competition, property fights and many others. The question is not whether we adjust to the electronic miracles all around us, but whether, as a society, we do it enthusiastically and well.

问答题中国执行改革开放政策，争取在五十到七十年间发展起来。

问答题He paid as much for the car insurance as he did for the car itself.

问答题A delay in the delivery of the textbooks will disturb our teaching plan.

问答题每个人都有各自的长处与缺点，应该互相学习，才能取人之长，补己之短。

问答题The proportion of children in America who are overweight has tripled over the past 20 years and now exceeds 17%, according to the Centres for Disease Control and Prevention (CDC). The health problems that this causes include hypertension and type-2 diabetes, formerly known only among the nation"s overweight adult population. A group sponsored by the National Institute on Ageing has warned that this may be the first generation ever to have a shorter lifespan than their parents. All the while, the proportion of children who take part in daily exercise at high school has dropped from 42% in 1991 to only 28% in 2004, according to the CDC. Snacking has greatly increased; the Government Accountability Office found in 2003 that 99% of America"s high schools now sell snacks and other food as well as providing lunches. In an attempt to get the problem tackled at local level, Congress in 2004 passed an act directing school districts that get money from the national school-lunch programme to create "wellness" policies by the start of the 2006-07 school year. The districts were told to set standards for nutrition, physical activity and education about good food, then make sure that schools actually implement them. One year after the deadline, the results are haphazard. School districts" plans range from a few paragraphs long to more than 25 pages. Some states, like Texas and Arkansas, have pre-emptively set standards for school districts under their jurisdiction, forcing schools to ban fizzy drinks and junk food while increasing the amount of exercise the pupils take. Others offer guidelines rather than man-dates, with no repercussions for schools that don"t comply. And in some areas, schools are being eased into change very slowly. Oregon"s legislature passed a bill in June that gives its schools ten years to meet its new physical-education requirements. Last October the School Nutrition Association (SNA), a pressure group, analysed health policies from the 100 largest school districts in the country, which account for almost a quarter of the nation"s primary-and-secondary-school students. Many districts had indeed created guidelines for nutrition education, physical activity and school food, as required, but the rules tended to be fairly broad. Some policies merely defaulted to the state recommendations and some to the federal government"s minimal requirements. The physical-activity guidelines were also varied; only 62% of schools made physical education obligatory. Action for Healthy Kids, another schools-oriented NGO, also looked at a smattering of policies last year. Of the 112 districts it analysed, only 30% specified a time requirement for physical-education classes and 42% offered only general guidelines for the sort of food and drink allowed to be sold in the schools. Cafeterias where nachos, French fries and cookies are tucked alongside salads, juice and fresh fruit do not encourage children to eat well. The SNA has now done a follow-up. It found that less than half of the schools were implementing their nutrition-education guidelines and enforcing vending-machine rules. The sporty bits fared better, with 64% of the schools meeting their physical-education requirements. Bringing the issue to a local level is meant to make up for the dearth of guidelines from the federal government. Other than banning chewing-gum and sweets from the cafeteria at lunchtime, there are no national guidelines for food sold outside the school lunch programme, nor are there any requirements for physical education. So far, the 2004 act does not seem to be doing enough to change that.

问答题大陆银行20世纪70年代末期快速成为中西部银行中的领头雁。可它的一些发展策略是很危险的。该银行在能源领域发放了很多贷款，包括从Oklahoma市的Penn Square银行接管10亿美元。为了获得放贷所需的资金，大陆银行过度依赖从其他银行借来的短期贷款和30天大额定期存单(银行业的行话称为“热钱”)。

问答题They properly have to be very factual

问答题向一位著名的女作家祝贺她八十岁寿辰，这样的机会是不多的，所以我去年十月五日到冰心家里去的时候，心情非常激动。我解释说希望她给我讲一下她是怎样成为诗人的。“我已有多年没有写诗了，”她微笑说，“可是我还是爱读好诗。” 冰心很幸运地有鼓励她学习和写作的父母。一九一九年她在北京一所女子学院念书时，一个事件改变了她生命的整个道路。那就是五四运动，一个由北京学生发动的爱国民主运动。群众游行示威的场面给她以深刻的印象。她投身于斗争中，并披学生会任命负责宣传工作。她写了诗歌，文章和故事，以抨击帝国主义和各种形式的封建主义。 她在1923年到美国去学文学，在旅途中和在美国居留中写下了她的感受。这些都收在一个集子里出版，就是《寄小读者》。这本书使她声誉突起。这不仅是因为她是一位女作家，而是因为书中的高尚的情操。有不少较年轻的作家说，是冰心的作品使他们走上了其后所走的道路。

问答题不过问题还是圆满地解决了，这说明计算很精确。

问答题States have the primary duty for the realization of the right to food. They must take steps, to the maximum of their available resources, to realize progressively the full enjoyment of the right of every person to adequate food, without discrimination of any kind.

问答题Bowling is good for the stone and reins, shooting for the lungs and breast, gentle walking for the stomach, riding for the head, and the like.

问答题Being the world's fourth largest exporter of medicines, Britain's pharmaceutical industry has some of the world's largest multinational research-intensive manufacturers.

问答题A few years ago, the rich world"s worry about economic interaction with developing countries was that the poor could not profit from it. So unbalanced were the terms of exchange between the North"s mighty industries and the South"s weakling sweatshops that trade between the two could be nothing more than exploitation of the one by the other; far from helping the poor countries, global integration would actually deepen their poverty. This fear has now given way to a pessimism that is equal and opposite—namely, that trade with the developing world will impoverish today"s rich countries. This new fear is more dangerous than the old one. The earlier scare tacitly "affirmed that the industrial countries would suffer if they cut heir links with the third world. Starting from there, campaigning in the North to restrict trade with developing countries was going to be an uphill struggle. Those who oppose deeper economic integration now have a better platform. Vital interests oblige the rich countries to protect their industries from the new competition. Unlike its predecessor, this idea may sell. The new fear, like the old one, expresses the conviction that growth in one part of the world must somehow come at the expense of another. This is a deeply rooted prejudice, and plainly wrong. Very nearly all of the world is more prosperous now than it was 30 years ago. Growth has been a story of mutual advance. Lending useful support to this first error is a second—the idea that there is only so much work to go round. If new technologies make some jobs obsolete, or if an increase in the supply of cheap imports makes other jobs uneconomic, the result must be a permanent rise in unemployment. Again, on a moment"s reflection, this is wrong. At the core of both errors is blindness to the adaptive power of a market economy.

问答题A recent study in the United States reports that the family life, education and health of America's children are generally improving, though child poverty has risen for the first time in a decade, according to the government's broadest measure of children's well-being. The report shows that the teenage birth rate is down, young people are less likely to be involved in violent crimes and the death rate for this group has declined. Experts say that teenagers who give birth are less likely to finish high school or to graduate from college than other girls of their age. Also, infants born to teenage mothers are more likely to be of low birth weight, which increases their chances of blindness, deafness, mental retardation, mental illness and cerebral palsy. The study shows that young people were less likely to be victimized in a serious violent crime -- murder, rape, robbery or aggravated assault -- or to commit one. In 2002, there were 11 serious violent crimes per 1,000 people aged 12 to 17, compared with 15 per 1,000 youths in 2001. Child mortality declined, too. In 2000, there were 18 deaths for every 100,000 children aged 5 to 14; a year later, there were 17 deaths for every 100,000 children in this age group. The infant mortality rate slightly increased. Seven of every 1,000 infants died before their first birthday in 2002, compared with a record low of 6.8 per. 1,000 in 2001. Still, children are more likely to be overweight than they were before and child poverty has inched up after several years of decline. The number of overweight children increased to 16 percent between 1999 and 2000, compared with from 11 percent in the early 1990s and 6 percent in the late 1970s. That development "jeopardizes our children's future, making them vulnerable to chronic conditions such as diabetes and hypertension previously associated more with adults than with children," said Edward J. Sondik, director of the Center for Disease Control's National Center for Health Statistics. The report said Mexican-American boys were at the highest risk, with 27 percent overweight followed by non-Hispanic girls at 23 percent. The child obesity issue is a major cause for concern, a health expert said to reporters. "This is a trend that's been at work since 1980 ... and as a trend, it shows no sign of reversing," the expert said. Child poverty also grew, reaching 11. 6 million in 2002, compared with 11. 2 million a year earlier. Children living with single females continued to experience a higher poverty rate in 2002 than their counterparts in married-couple families -- 40 percent compared with 9 percent. In 2002, 73 million children under 18 lived in the United States and made up 25 percent of the population.

问答题Surprisingly enough, none of them showed any sign of fear

问答题She was more royal than the royals.

问答题中国已派出贸易代表团前往非洲各国，以便与这些国家的政府商谈贸易协定。

问答题The most common prescription insomnia medicine is a sedating antidepressant called trazodone, even though there's no good evidence that it offers more than a two-week benefit, and it comes with side effects.