单选题What is regarded as the first American prose epic? A. Nature. B. The Scarlet Letter. C. Walden. D. Moby Dick.

单选题New measures of Medical journals does NOT aim at ______.

单选题Wuhan learners of English tend to pronounce "night" as "light". This shows ______.A. they can't pronouce the sound [n]B. they do not like to pronounce nasal soundsC. interlangue interference because there is not [n] in Wuhan dialectD. their teachers do not have a good teaching method

单选题What is the direct cause of the improvement of women's position in the family?

单选题[此试题无题干]

单选题The content of the passage can be best described as______.

单选题

单选题Which of the following statements is not true about Jefferson?

单选题Which of the following is NOT a U.S. news and cable network?

单选题Which of the following matches of chief city and the state it belongs to is NOT correct?

单选题As much as murder is a staple in mystery stories, so is love. Love may be a four-letter word, or the greatest of the trio of faith, hope, and love. It may appear in a mystery as the driving force behind the plot and the characters. Or it may appear as an aside in a sub-plot, a light spot in a heavy story. But it"s there. Even Valentine knew love was worth dying for. An emotion this strong gets a lot of attention. Love has its own special day, St. Valentine"s Day. According to the legend, the Roman emperor Claudius II needed soldiers to fight for him in the far reaches of the Roman Empire. He thought married men would rather stay home than go to war for a couple of years, so he outlawed marriage and engagements. This did not stop people from falling in love. Valentine, a priest, secretly married many young couples. For this crime, he was arrested and executed on February 14. St. Valentine"s Day was off to a rocky start. Love, secrecy, crime and death, love prevailed, and the day lost its seamy side. Valentine"s Day became a day to exchange expressions of love. Small children give each other paper hearts. Adults exchange flowers and chocolates. Everyone has an attack of the warm fuzzies. Valentine"s Day was popular in Europe in the early 1800s as a day men brought gifts to the women they loved. Gradually the expectations grew higher, the gifts got bigger, and eventually the holiday collapsed under the weight of the bills. It was revived when the custom of exchanging love letters and love cards replaced the mandatory gifts. A young man"s love was measured in how much time he spent making a card with paper, lace, feathers, beads, and fabric. If the young man wasn"t good with scissors and glue, the job could be hired out to an artist who made house calls. Valentine"s Day grew more popular when machine-made cards became available, and people didn"t have to make their own. In England in 1840, the nation-wide Penny Post made it cheap for everyone to send Valentine cards. In the United States, national cheap postal rates were set in 1845, and valentines filled the mail. "Roses are red, violets are blue" was a popular verse on Valentine cards. Other holidays are associated with particular flowers—the Christmas poinsettia, the Easter lily—but Valentine"s Day has no specific flower. Instead, it has colors—red, pink, and white. Red symbolizes warmth and feeling. White stands for purity. According to one romantic flower code, messages can be spelled out with flowers. Gardenias say "I love you secretly". Violets say "I return your love". Roses say "I love you passionately". Not surprisingly, the rose is now the top-seeded flower of love. But love mostly goes wrong in mystery stories. Very badly wrong. Somebody done somebody wrong. Husbands, wives, and lovers kill each other. Or kill for each other. Stack the characters up in any kind of love triangle, and watch how the angles are knocked off. Love is unrequited, thwarted and scorned. Murders are motivated by real or imaginary love, or the lack of it. That famous novelist Ernest Hemingway said, "If two people love each other there can be no happy end to it". So it goes in the mystery. Justice may win, but love is often the loser. In addition to plots driven by love, or the lack of it, there are sleuths who encounter love in the solving of the crime. The handsome or beautiful detective meets the suspect or the client. Their affair grows around, and in spite of, the murder. Think of the movies Casablanca and Chinatown. Barbara D"Amato offers a different twist on this theme in "Hard Feelings". The amateur sleuth meets a suspect or investigating officer and love smolders around the crime. Rose DeShaw"s "Love with the Proper Killer" is such a story. In a series of novels, if the continuing character is living a full life, love enters the storyline somewhere. Dorothy L. Sayers" sleuth Lord Peter Wimsey fell in love with Harriet Vane while he sleuthed his way through a few books. Sherlock Holmes remained aloof, but Dr. Watson fell in love and married between impossible crimes. There were no such temptations for Hercule Poirot or Jane Marple, but Agatha Christie created Tuppence and Tommy Beresford as a detecting couple. Real crimes are sometimes motivated by love, and are written about in true crime books. E.W. Count describes one such case in "Love is a Risk." "Married to a Murderer," by Alan Russell, follows the crime one step further. Feeling an attack of the warm fuzzies? Do something sweet for someone you love. Then do something sweet for yourself. Settle back with soft music and savor the online mysteries of love and romance in the Valentine and Romance Mysteries sections of this site.

单选题What can NOT be inferred from the first paragraph?

单选题What is true of sleepwalking according to the passage?

单选题The Maori people are natives of[A] Australia.[B] Canada.[C] Ireland.[D] New Zealand.

单选题Which of the following is the main problem of the current patent system?

单选题Who was the first English king la bring all Ireland under English control?

单选题 {{B}}TEXT A{{/B}} Up goes gold, down goes the dollar. Most economists hate gold. Not, you understand, that they would turn up their noses at a bar or two. But they find the reverence in which many hold the metal almost irrational, That it was used as money for millennia is irrelevant: it isn't any more. Modern money takes the form of paper or, more often, electronic data. To economists, gold is now just another commodity. So why is its price soaring? Over the pest week, this has topped $ 450 a troy ounce, up by 9% since the beginning of the year and 77% since April 2001. Ah, comes the reply, gold transactions are denominated in dollars, and the rise in the price simply reflects the dollar’s fall in terms of other currencies, especially the euro, against which it hit a new low this week. Expressed in euros, the gold price has moved much less. How- ever, there is no iron link, us it were, between the value of the dollar and the value of gold. A rising price of gold, like that of anything else, can reflect an increase in demand as well as a depreciation of its unit of account. This is where gold bulls come in. The fall in the dollar is important, but mainly because as a store of value the dollar stinks. With a few longish rallies, the greenback has been on a downward trend since it came off the gold standard in 1971. Now it is suffering one of its sharper declines. At the margin, extra demand has come from those who think dollars--indeed any money backed by nothing more than promises to keep inflation low--a decidedly risky investment, mainly because America, with the world's reserve currency, has been able to create and borrow so many of them. The least painful way of repaying those dollars is to make them worth less. The striking exception to this extra demand comes from central banks, which would like to sell some of the gold they already have. As a legacy of the days when their currencies were backed by the metal, central banks still hold one-fifth of the world's gold. Last month the Bank of France said it would sell 500 tonnes in coming years. But big sales by central banks can cause the price to plunge--as when the Bank of England sold 395 tonnes between 1999 and 2002. The result was an agreement between central banks to co-ordinate and limit future sales. If the price of gold marches higher, this agreement will presumably be ripped up, although a dollar crisis might make central banks think twice about switching into paper money. Will the overhang of central-bank gold drag the price down again? Not necessarily. As James Grant, gold bug and publisher of Grant's Interest Rate Observer, a newsletter, points out, in recent years the huge glut of government debt has not stopped a sharp rise in its price.

单选题Christmas is usually connected to ______.

单选题In terms of its tone and form, the passage can best be characterized as ______.

单选题Ifonedoesnotworkoutregularly,hemay______.