单选题In many cities pedestrians are now much safer because ______.

单选题The chief ______ of that young man are his generosity and energy.

单选题Total investments for this year reached $ 56 million, and to put this into ______ investments this year will double those made in 1997.

单选题A:I wonder______your full name please. B: My full name is Jack Wiuiams.

单选题Brazilian music is thoroughly imbued with African themes, and {{U}}illustrious{{/U}} composers have long found inspiration in the black musical heritage.

单选题According to what is beyond the ability of Europe's firms now is ______.

单选题Among all the fast growing science and technology, the research of human genes, or biologi cal engineering as people call it, is drawing more and more attention now. Sometimes it's a hot topic discussed by people. The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied, not only these two diseases can be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human life span(寿命)can be prolonged. Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial(皇帝的)family being a good example, have hereditary(遗传的)diseases. This means their children will for sure have the family disease, which is a great trouble for these families. In the past, doctors could do nothing about hereditary diseases. But gene technology can solve this problem perfectly. Scientists just need to find the wrong gene and correct it, and a healthy child will be born. Some people are worrying that the gene research can be used to manufacture(生产)human beings in large quantities. In the past few years, scientists have succeeded in cloning a sheep; therefore these people predict that human babies would soon be cloned. But I believe cloned babies will not come out in large quantities, for most couples in the world can have babies in very normal way. Of course, the governments must take care to control gene technology.

单选题Phillip and Geoffrey's voices must be ______.

单选题At the last committee meeting, the motion that the sale of the alcohol ______ unlawful was defeated.

单选题______ a certain doubt among the students as to the necessity of the work.

单选题______he goes, she will go, and she never cares ______happens.

单选题According to the passage, the best word to describe America in the 1930s would be ______.

单选题根据下面资料，回答问题。A world like no other—perhaps this is the best way to describe the world of the rainforest. No rainforest is the same—yet most rainforests can be found in the small land area 22.5 degrees

单选题The pattern needs special practice as Chinese students may find ______.

单选题If a potential customer enjoys your advert, they are more likely to buy your product. It's a simple 25 , but it is extremely difficult to know how well your advert is being received in the real world. Now a new system could help 26 know exactly how their latest offering is going down with viewers, just by watching their face. The system, developed by Daniel McDuff and colleagues at the Massachusetts Institute of Technology Media Lab, looks at how 27 in the face move in response to watching a video. Software can then classify what counts as positive 28 responses and smiles during the video and from that predict which adverts the viewer most enjoys. The team collected more than 3200 videos of people, whose faces were 29 by their own computer's webcam as they watched three adverts online during the Super Bowl in 2011. After each commercial—one for Doritos, one for Google and one for Volkswagen—the viewers were asked if they liked the video and whether they would want to watch it again. In tests, the system made correct 30 more than 75 per cent of the time. The system would be a 31 for advertisers trying to grab the attention of potential customers on the Internet. In future, the system could be used to personalize adverts for viewers as they watch programs online, depending on their 32 , or as a more 33 way of testing how good a new advert is at 34 to customers. A. facial F. created K. predictions B. boon G. suggestions L. advertisers C. reaction H. concept M. appealing D. filmed I. effective N. people E. face J. eyes O. muscles

单选题Our readers are comfortable with our clear, ______words that inform and entertain them.

单选题Do you think you can get the work ______ in less than five days?

单选题Seventeen-year-old Quantae Williams doesn't understand why the U. S. Supreme Court struck down his school district's racial diversity program. He now (61) the prospect of leaving his mixed-race high school in suburban Louisville and (62) to the poor black downtown schools where he (63) in fights. "I'm doing (64) in town. They should just leave it the (65) it is," said Williams, using a fond nickname for suburban Jeffersontown High School, (66) he's bused every day from his downtown neighborhood. "Everything is (67) , we get along well. If I go where all my friends go, I'll start getting in trouble again," Williams said as he took a (68) from his summer job (69) clothing (70) for poor families. Last month's 5-4 ruling by the Supreme Court struck down programs that were started voluntarily in Louisville and Seattle. The court's decision has left schools (71) the country (72) to find a way to protect (73) in their classrooms. Critics have called the decision the biggest (74) to the ideals of the 1954 Brown vs. Board of Education (75) , which outlawed racial segregation in U. S. public schools. With students already (76) to schools for the (77) year that begins in September, (78) will be immediately affected by the Supreme Court decision. In Jefferson County, officials said it could be two years (79) a new plan is (80) place, leaving most students in their current schools.

单选题They have been arrested as suspected drug______.

单选题Passenger: Taxi! (A cab stops and he goes in.)Cab driver: ______.Passenger: King's Hotel on North Street.