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单选题It is hard to box against a southpaw, as Apollo Creed found out when he fought Rocky Balboa in the first of an interminable series of movies. While "Rocky" is fiction, the strategic advantage of being left-handed in a fight is very real, simply because most right-handed people have little experience of fighting left-handers, but not vice versa. And the same competitive advantage is enjoyed by left-handers in other sports, such as tennis and cricket. The orthodox view of human handedness is that it is connected to the bilateral specialization of the brain that has concentrated language-processing functions on the left side of that organ. Because, long ago in the evolutionary past, an ancestor of humans (and all other vertebrate animals ) underwent a contortion that twisted its head around 180° relative to its body, the left side of the brain controls the right side of the body, and vice versa. In humans, the left brain (and thus the right body ) is usually dominant. And on average, left-handers are smaller and lighter than right-handers. That should put them at an evolutionary disadvantage. Sporting advantage notwithstanding, therefore, the existence of left-handedness poses a problem for biologists. But Charlotte Faurie and Michel Raymond, of the University of Montpellier Ⅱ, in France, think they know the answer. As they report in the Proceedings of the Royal Society, there is a clue in the advantage seen in boxing. As any schoolboy could tell you, winning fights enhances your status. If, in prehistory, this translated into increased reproductive success, it might have been enough to maintain a certain proportion of left-handers in the population, by balancing the costs of being left- handed with the advantages gained in fighting. If that is true, then there will be a higher proportion of left-handers in societies with higher levels of violence, since the advantages of being left-handed will be enhanced in such societies. Dr Faurie and Dr Raymond set out to test this hypothesis. Fighting in modern societies often involves the use of technology, notably firearms, that is unlikely to give any advantage to left-handers. So Dr Faurie and Dr Raymond decided to confine their investigation to the proportion of left-handers and the level of violence (by number of homicides) in traditional societies. By trawling the literature, checking with police departments, and even going out into the field and asking people, the two researchers found that the proportion of left-handers in a traditional society is, indeed, correlated with its homicide rate. One of the highest proportions of left-handers, for example, was found among the Yanomamo of South America. Raiding and warfare are central to Yanomamo culture. The murder rate is 4 per 1000 inhabitants per year (compared with, for example, 0.068 in New York). And, according to Dr Faurie and Dr Raymond, 22.6% of Yanomamo are left-handed. In contrast, Dioula-speaking people of Burkina Faso in West Africa are virtual pacifists. There are only 0.013 murders per 1000 inhabitants among them and only 3.4% of the population is left- handed. While there is no suggestion that left-handed people are more violent than the right- handed, it looks as though they are more successfully violent. Perhaps that helps to explain the double meaning of the word "sinister".

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单选题Europe is desperate to succeed in business. Two years ago, the European Union's Lisbon summit Set a goal of becoming the world's leading economy by 2010. But success, as any new age executive coach might tell you, requires confronting the fear of failure. That is why Europe's approach to bankruptcy urgently needs reform. In Europe, as in the United States, many heavily indebted companies are shutting up shop just as the economy begins to recover. Ironically, the upturn is often the moment when weak firms finally fail. But America's failures have a big advantage over Europe's weaklings: their country's more relaxed approach to bankruptcy. In the United States the Chapter 11 law makes going bust an orderly and even routine process. Firms in trouble simply apply for breathing space from creditors. Managers submit a plan of reorganization to a judge, and creditors decide whether to give it a go or to come up with one of their own. Creditors have a say in whether to keep the firm running, or to liquidate it. If they keep it running, they often end up with a big chunk of equity, if not outright control. But shutting a bust European company is harder in two other ways. First, with no equivalent of Chapter 11, bankruptcy forces companies to stop trading abruptly. That damages the value of the creditors' potential assets, and may also cause havoc for customers. Second, a company that trades across the European Union will find that it has to abide by different bankruptcy laws in the 15 member states, whose courts and administrators may make conflicting and sometimes incompatible stipulations. The absence of provision for negotiations between companies and creditors increases the temptation for government to step in. When governments do not come to the rescue, the lack of clear rules can lead to chaos. As a result of all this, Europe's teetering firms miss the chance to become more competitive by selling assets to others who might manage them more efficiently. Their sickly American rivals survive, transformed, to sweep the field. An opportunity now exists to think again about Europe's approach to bankruptcy. The European Union is expected to issue a new directive on the subject in May. Germany has begun to update its insolvency law. And last year Britain produced a white paper saying that a rigid approach to bankruptcy could stifle the growth needed to meet Lisbon's goals.

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单选题以下各项不能增加政府财政收入的是（）。 A、税收 B、公债 C、罚没 D、转移支付

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单选题（）属于中央银行作为国家的银行职能范畴

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单选题我国社会保障制度的内容包括 ①社会保险 ②社会救济 ③社会福利 ④社会优抚 ⑤社会捐赠

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单选题GDP缩减指数反映的是( )。

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单选题以下属于企业代理问题的是

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单选题建立现代企业制度的基本前提是（）

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单选题在确定的未来某一时期，按照确定的价格买卖（但不在交易所集中交易）一定数量的某种资产的协议指的是（）

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单选题经济发展（）

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单选题我国经济由粗放型向集约型转变的根本出路是（）

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