单选题In the last paragraph the author is making a plea for ______.

单选题Which of the following is NOT true of the environments in which fossils are found?

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单选题Scobie liked to have his telescope in bed because ______.

单选题It's plain common sense—the more happiness you feel, the less unhappiness you experience. It's plain common sense, but it's not true. Recent research reveals that happiness and unhappiness are not really two sides of the same emotion. They are two distinct feelings that, coexisting, rise and fall independently. People might think that the higher a person's level of unhappiness, the lower their level of happiness and vice versa. But when researchers measure people's average levels of happiness and unhappiness, they often find little relationship between the two. The recognition that feelings of happiness and unhappiness can coexist much like love and hate in a close relationship may offer valuable clues on how to lead a happier life. It suggests, for example, that changing or avoiding things that make you miserable may well make you less miserable, but probably won't make you any happier. That advice is backed up by an extraordinary series of studies which indicate that a genetic predisposition for unhappiness may run in certain families. On the other hand, researchers have found happiness doesn't appear to be anyone's heritage. The capacity for joy is a talent you develop largely for yourself. Psychologists have settled on a working definition of the feeling—happiness is a sense of subjective well-being. They have also begun to find out who's happy, who isn't and why. To date, the research hasn't found a simple formula for a happy life, but it has discovered some of the actions and attitudes that seem to bring people closer to that most desired of feelings. Why is unhappiness less influenced by environment? When we are happy, we are more responsive to people and keep up connections better than when we are feeling sad. This doesn't mean, however, that some people are born to be sad and that's that. Genes may predispose one to unhappiness, but disposition can be influenced by personal choice. You can increase your happiness through your own actions.

单选题According to the passage, the theater ______.

单选题According to the text, making monetary policy changes

单选题When they were children, Terri Schiavo's brother Bobby accidentally locked her in a suitcase. She tried so hard to get out of the suitcase that she jumped up and down and screamed. The scene predicted, horribly, how she would end, though by that stage she had neither walked nor talked for more than 15 years. By the time she finally died on March 31st, her body had become a box out of which she could not escape. More than that, it had become a box out of which the United States government, Congress, the president, the governor of Florida and an army of evangelical protestors and bloggers would not let her escape. Her life, whatever its quality, became the property not merely of her husband (who had the legal right to speak for her) and her parents (who had brought her up), but of the courts, the state, and thousands of self-appointed medical and psychological experts across the country. The chief difference between her case and those of Karen Quinlan and Nancy Cruzan, much earlier victims of Persistent Vegetative State (PVS), was the existence of the internet. When posted videotapes showed Mrs Schiavo apparently smiling and communicating with those around her, doctors called these mere reflex activity, but to the layman they seemed to reveal a human being who should not be killed. On March 20th, a CAT scan of Mrs Schiavo's brain — the grey matter of the cerebral cortex more or less gone, replaced by cerebrospinal fluid — was posted on a blog. By March 29th, it had brought 390 passionate and warring responses. All this outside interference could only exacerbate the real, cruel dilemmas of the case. After a heart attack in February 1990, when she was 26, Mrs Schiavo's brain was deprived of oxygen for five minutes and irreparably damaged. For a while, her family hoped she might be rehabilitated. Her husband Michael bought her new clothes and wheeled her round art galleries, in case her brain could respond. By 1993, he was sure it could not, and when she caught an infection he did not want her treated. Her parents disagreed, and claimed she could recover. From that point the family split, and litigation started. Each side, backed by legions of supporters, accused the other of money-grubbing and bad faith. A Florida court twice ordered Mrs Schiavo's feeding tube to be removed and Jeb Bush, the governor of Florida, overruled it. The final removal of the tube, on March 18th, was followed by an extraordinary scene, in the early hours of March 21st, when George Bush signed into law a bill allowing Mrs Schiavo's parents to appeal yet again to a federal court. But by then the courts, and two-thirds of Americans, thought that enough was enough. On March 24th the Supreme Court declined to hear the case.

单选题The gold standard had limited liquidity (paragraph 2) most probably because

单选题Which of the following can best describe the essence of slang?

单选题 {{I}} Questions 14--16 are based on the following passage. You now have 15 seconds to read Questions 14--16.{{/I}}

单选题The author's assertions concerning the conditions that lead to the decay of the vacuum would be most weakened if which of the following occurred?