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A．1个B．18个C．15个D．无数个
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Internet是全球最大的、开放的、由众多网络互联而形成的计算机网络，狭义Internet是指由上述提到网络中采用IP协议的网络互联而成的，广义Internet是指狭义Internet加上所有(12)的网络。Internet体系结构具有良好扩充性的主要原因在于它(13)。广义Internet的这种基于单一主干核心结构的弊端在于(14)。这种结构将逐渐被(15)所取代。
Which of the following is NOT the reason for the US less progress in longevity than other
Heathrow's move into "sensory？" marketing is the latest in a long line of attempts by businesses to use sensory psychology—the scientific study of the effects of the senses on our behavior. to help sell products. Marketing people call this "atmosphere” using sounds or smells to manipulate consumer behavior. On Valentine's Day two years ago the chain of chemist's Superdog scented one of its London shops with chocolate. The smell of chocolate is supposed to have the effect of reducing concentration and making customers relax. "Chocolate is associated with love", said a marketing spokeswoman, "We thought it would get people in the mood for romance." She did not reveal, though, whether the smell actually made people spend more money.
However, research into customer satisfaction with certain scented products has clearly shown that smell does have a commercial effect, though of course it must be an appropriate smell②. In a survey, customers considered a lemon-scented detergent more effective than another scented with coconut despite the fact that the detergent used in both was identical. On the other hand, a coconut-scented suntan lotion was rated more effective than a lemon-scented one. A research group from Washington University reported that the smell of mint or orange sprayed in a store resulted in customers rating the store as more modern and more pleasant for shopping than other stores without the smell. Customers also rated the goods on sale as better, and ex pressed a stronger intention to visit the store again in the future.
Music too has long been used in supermarkets for marketing purposes. Supermarkets are aware, for ex ample, that slow music causes customers to stay longer in the shop (and hopefully buy more things). At Leicester University psychologists have found that a specific kind of music can influence consumer behavior. In a supermarket French wine sold at the rate of 76% compared to 20% German wine when French accordion music was played. The same thing happened in reverse when German bierkeller music was played. In one American study people even bought more expensive wines when classical music was played instead of country music.
Writers and poets have often described the powerful effects of smell on our emotion, and smell is often considered to be the sense most likely to evoke emotion-filled memories. Research suggests however that this is a myth and that a photograph or a voice is just as likely to evoke a memory as a smell. Perhaps the reason for this myth is because smells, as opposed to sights and sounds, are very difficult to give a name to. The fact that smell is invisible, and thus somehow more mysterious, may partly explain its reputation as our most emotional sense.
What is the use of "aroma box" at Heathrow airport？
The current political debate over family values, personal responsibility, and welfare takes for granted the entrenched American belief that dependence on government assistance is a recent and destructive phenomenon. Conservatives tend to blame this dependence on personal irresponsibility aggravated by a swollen welfare apparatus that saps individual initiative. Liberties are more likely to blame it on personal misfortune magnified by the harsh lot that falls to losers in our competitive market economy. But both sides believe that the "winners" in America make it on their own that dependence reflects some kind of individual or family failure, and that the ideal family is the self-reliance unit of the traditional lore—a family that takes care of its own, carves out a future for its children, and never asks for handouts①. Politicians at both ends of the ideological spectrum have wrapped themselves in the mantle of these "family values", arguing over why the poor have not been able to make do without assistance, or whether aid has worsened their situation, but never questioning the assumption that American families traditionally achieve success by establishing their independence from the government.
The myth of family self-reliance is so compelling that our actual national and personal histories often buckle under its emotional weight. "We successors always stood on our own two feet," my grandfather used to say about his pioneer heritage, whenever he walked me to the top of the hill to survey the property in Washington State that his family had bought for next to nothing after it had been logged off in the early 1900s. Perhaps he didn't know that the land came so cheap because much of it was part of a federal subsidy originally allotted to the railroad companies, which had received 183 millions acres of the public domain in the nineteenth century. These federal giveaways were the original source of most major western logging companies' land, and when some of these logging companies moved on to virgin stands of timber, federal lands trickled down to a few early settlers who were able to purchase them inexpensively.
Like my grandparents, few families in Americans history—whatever their "values"—have been able to rely solely on their own resources. Instead, they have depended on the legislative, judicial and social-sup port structures set up by governing authorities, whether those were the clan elders of Native American societies, the church courts and city officials of colonial America, or the judicial and legislative bodies established by the Constitution②.
At America's inception, this was considered not a dirty little secret but the norm, one that confirmed to social and personal interdependence. Tile idea that the family should have the sole or even primary responsibility for educating and socializing its members, finding them suitable work, or keeping them from poverty and crime was not only ridiculous to colonial and revolutionary thinkers but also dangerously parochial.
Conservatives believe that welfare services have played a certain role in ______.
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