单选题A standing order is ______.

单选题______the claim about German economic might, it is somewhat surprising how relatively small the German economy actually is.

单选题 Why has crime in the U.S. declined so dramatically since the 1990s? Economists and sociologists have offered a bounty of reasons, including more police, more security technology, more economic growth, more immigration, more imprisonment, and so on. The 'real' answer is almost certainly a combination of these factors, rather than one of them to the exclusion of the rest. But a new paper adds a surprising variable to the mix. What if the decline of crime in America started with the decline of cash? Cash is critical to the health of an underground economy, because it's anonymous, nearly untraceable, and easily stolen. This makes it the lifeblood of the black market. But Americans are rapidly abandoning cash thanks to credit cards, debit cards, and mobile payments. Half a century ago, cash was used in 80 percent of U.S. payments. Now that figure is about 50 percent, according to researchers. In the 1980s, the federal government switched from paper money to electronic benefit transfers. They didn't switch all at once. They switched one county at a time within states. This created a kind of randomly controlled environment for the researchers, who studied Missouri's counties to establish whether the areas that switched from welfare cash to electronic transfers saw a concurrent decline in crime. The results were striking: The shift away from cash was associated with 'a significant decrease in the overall crime rate and the specific offenses of burglary and assault in Missouri and a decline in arrests.' In other words, the counties saw a decline in specific crimes when they switched away from cash welfare. Perhaps most interestingly, they found that the switch to electronic transfers reduced robbery but not rape, suggesting that the move away from cash only had an impact on crime related to getting and spending cash. The move toward cashlessness in the U.S. continues quickly. Google now lets you attach money to emails to send to friends, which means that for some shoppers, pulling out your credit card could become as rare as finding exact change in your coin purse. It might seem absurd to imagine Visa, Square, and Google Wallet as crime-fighting technologies. But with a better understanding of how cash's availability affects crime, perhaps the government should consider killing more than just the penny.

单选题According to one theory, when the glaciers disappeared, birds ______.

单选题All the staff members of the department made zealous efforts to clean up the hall for the Christmas party.

单选题It is those people who ______ most angry at what is going on at university campuses.

单选题A man's ______ is best when he can forget himself and any reputation he may have required and can concentrate wholly on making the right decisions. A. anticipation B. acknowledgement C. expectation D. judgment

单选题 Parents who consider their kids to be 'more special than other children' and feel that they 'deserve something extra in life' may now be characterized not only as annoying, but also as responsible for bringing one more self-important narcissist into society. New research out of the Netherlands published Monday in the Proceedings of the National Academy of Sciences found that children who were overvalued by their parents scored higher on tests to identify narcissism (自恋) than their peers. 'Children believe it when their parents tell them that they are more special than others. That may not be good for them or for society,' Brad Bushman, co-author of the study and an Ohio State University professor, said in a statement. Eddie Brummelman, a postdoctoral researcher at the University of Amsterdam in the Netherlands and another author on the study, noted that parents often think telling children how special they are compared with their peers will boost their self-confidence. But narcissism is not just a more extreme form of self-confidence; people with high-esteem do not think they're better than others. According to his research, the more narcissistic children did not necessarily express more self-confidence. 'Rather than raising self-esteem, overvaluing practices may inadvertently raise levels of narcissism,' Brummelman said. Over two years, the team evaluated 565 children in the Netherlands who were between the ages of 7 and 11 years old when the study began. They asked parents how much they agreed with statements like, 'My child is a great example for other children to follow,' and whether or not they believed their children would have knowledge of various historical and cultural figures and topics, like 'Neil Armstrong.' Eventually, the researchers began including entirely fictional figures and topics, 'Queen Alberta.' The parents raising little narcissists would often fall for it. 'Overvaluing parents tended to claim that their children had knowledge of many different topics—even these nonexistent ones,' Brummelman said. While parental 'overvaluing' was associated with narcissistic offspring, parental warmth was not. Children of parents who expressed warmth by telling their children they loved them, but who did not engage in 'overvaluing' behavior, were more likely to agree with statements that suggested they were 'happy with themselves as a person and liked the kind of person they were.' In short, parental warmth appears to be closely linked to self-confident kids, not narcissistic kids. The researchers conclude that expressing warmth is key to promoting healthy self-confidence in children. Bushman, who is a father of three children, said his research has made him rethink his own parenting style. 'When I first started doing this research in the 1990s, I used to think my children should be treated like they were extra-special. I'm careful not to do that now,' he said.

单选题The tendency of the human body to reject foreign matter is the main obstacle to successful organ transplantation.

单选题In ______ century, computers will be used more widely.

单选题He made a proposal that the problem ______ at the meeting. A. discuss B. will be discussed C. be discussed D. would be discussed

单选题The aim of voyages Maury encouraged in the 1840s was ______.

单选题Did he really expect her to smile now and______with his plans, treat all this deception as no more than an unusual diversion? A. fall in B. put off C. agree to D. stand up

单选题Some people do not like anything to be out of place; they are never late for work; they return their books on time to the library; they remember people's birthdays; and they pay their bills as soon as they arrive. Mr. Hill is such a man. Mr. Hill works in a bank, and lives alone. The only family he has is in the next town: his sister lives there with her husband, and her son, Jack. Mr. Hill does not see his sister, or her family, from one year to the next, but he sends them Christmas cards, and he has not forgotten one of Jack's seventeen birthdays. Last week Mr. Hill had quite a surprise. He drove home from the bank at the usual time, driving neither too slowly nor too fast; he parked his car where he always parked it, out of the way of other cars, and he went inside to make his evening meal. Just then, there was a knock at the door. He opened the door, to find a policeman standing on the door-step. "What have I done wrong?" Mr. Hill asked himself. "Have I driven on the wrong side of the road? Has there been some trouble at the bank? Have I forgotten to pay an important bill?" "Hello, Uncle," said the policeman, "My name is Jack./

单选题The price of beer______from 40 cents to $ 4 per liter during the summer season. A. altered B. ranged C. separated D. differed

单选题Training astronauts______ not an easy thing.

单选题下面的短文后列出了10个句子,请根据短文的内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息，选择B;如果该句的信息文中没有提及，选择C,并将所选答案的代码指A.B或C填在相应位置上。Everyone knows that listening to music when feeling bad can provide a relief. Music can also

单选题A: Sorry to bother you, but could you tell me the way to Sunset Road? B:______.