单选题Police have already identified around 10 murder suspects.

单选题Human facial expressions differ from those of animals in the degree to which they can be deliberately controlled and modified. A. sufficiently B. noticeably C. intentionally D. absolutely

单选题The first paragraph suggests that both dreams and functions of dreams are

单选题He was persuaded to give up the idea.

单选题Own Your Children"s Education "Helping them isn"t about showing your kids how to do the work. It"s about being genuinely interested and having regular conversations about what they"re learning," says J. Gary Knowles, a professor at the Ontario Institute for Studies in Education, part of the University of Toronto. Rozon has a slew of suggestions for how to get more involved. "Get to know the teacher. Discuss ways to tailor the assignments to your child"s learning style. Spend time in the classroom. Ask for outlines of unit studies so you can find supplementary materials at the library or through videos. Read your child"s textbooks: If you work a few pages ahead, you"ll be able to help them with problems they encounter." "Reading is another must." says Rozon. "Even after your children can read themselves, hearing somebody else read aloud is important. We nearly always have a book on the bed; we read for at least a half hour before bedtime." The more engaged a parent is, the more the child benefit, adds Bruce Arai. "The evidence is clear: Parental involvement is one of the most important factors in school success." Arai cites the National Longitudinal Survey of Children and Youth sponsored by Human Resources Development Canada (HRDC), which is measuring all aspects of child development. "The hours children spend in class are but one element of their education." states HRDC, which says parental support, along with teacher support and a positive attitude towards school, all contribute to academic success. "I see every moment of every day as a learning experience." says Goforth. "The most satisfying part of it is seeing the love of learning continued. I"m not squelching my children"s desire to learn by insisting they learn. They learn because they want to." Adds Jeanne Lambert, mother of Carey Graham: "Make the time, take the time, guide, lead, and encourage. If nothing else, your children learn you care, and that"s the most important lesson you can give them."

单选题After years of research, Charles Drew devised a procedure for preserving plasma.

单选题The notion of the "quality circle" first found widespread acceptance in Japan.A. noteB. ideaC. announcementD. notice

单选题The girl is gazing at herself in the mirror.

单选题Influenza Influenza has been with us a long time. According (51) some Greek writers on medical history, the outbreak of 412 B.C. was of influenza. The same has been suggested of the sickness that swept through the Greek army (52) Syracuse in 395B.C. Flu is a disease that moves most quickly among people (53) in crowded conditions, hence, it is likely to attack armies. During the nineteenth century there were five widespread (54) of influenza. The last of the five (55) in 1889 and marked the beginning of the story of influenza in our time. Like the (56) started in Asia. For more than forty years before that outbreak, influenza had steadily (57) and was believed to be dying out. A new group of outbreaks was introduced by the great outbreak of 1889-1890 and for the next quarter of a century flu (58) a constant threat. In April 1918 flu broke out among American troops stationed in France. It quickly spread through all the armies but caused relatively (59) deaths. Four months later, (60) , a second outbreak started which proved to be a killer. It killed not only the old and already sick but also (61) young adults. It went through every country in the world, only a few distant islands in the South Atlantic and the Pacific remaining (62) . It brought the life of whole countries (63) , food supplies stopped and work loss was very great. Before the great outbreak ended, it (64) at least 15 million people. Thereafter there have been several great outbreaks throughout the world. It is thus (65) that influenza is a terrible infection that we have to pay more attention to.

单选题Your compass and clock are the most essential instruments in sailing. A. equipments B. tools C. instructions D. opportunities

单选题We propose to {{U}}furnish{{/U}} our own house according to our own taste.

单选题Exercise Cuts Cancer Deaths in Men Men who exercise often are less likely to die from cancer than those who 1 , new research published in the British Journal of Cancer revealed yesterday. A team of scientists from the Karolinska Institute in Sweden looked 2 the effect of physical activity and cancer risk in 40, 708 men 3 between 45 and 79. The seven-year study found that men 4 walked or cycled for at least 30 minutes a day had a 34 percent lower risk of 5 from cancer than the men who did less exercise or nothing at all. 6 the period studied, 3, 714 men developed cancer and 1, 153 died from the disease. The researchers suggest that half an hour"s walking 7 cycling a day increased survival among these men by 33 percent. The researchers surveyed men from two counties in central Sweden about their lifestyle and the amount of 8 activity they were usually doing. They then scored these responses and compared the results 9 data on cancer diagnosis and death officially recorded in a central cancer registry over a seven-year period. Lead author, Professor Alicja Wolk, said: "These results clearly show for the first time the effect that very simple and basic daily 10 such as walking or cycling has in reducing cancer death risk in middle-aged and elderly 11 ". Dr Lesley Walker, director of cancer information at Cancer Research UK, said: "This study gives us a clear indication that men who exercise are less 12 to die from cancer, and that they are more likely to 13 the disease if they get it. It"s not entirely clear from this study what role exercise plays in preventing 14 in men, but we do know that a healthy lifestyle can prevent up to half of all cancers and 15 exercise forms a key part of this. "

单选题This kind of animals are on the verge of extinction , because so many are being killed for their fur.

单选题They have given up the hope to save their friend from drowning. A. ended B. abandoned C. built D. strengthened

单选题 Iron Deficiencies Sports medicine experts have observed for years that endurance athletes, particularly females, frequently have iron deficiencies. Now a new study by a team of Purdue University researchers suggests that even moderate exercise may lead to reduced iron in the blood of women. "We found that women who were normally inactive and then started a program of moderate exercise showed evidence of iron loss," says Roseanne M. Lyle, associate professor at Purdue. Her study of 62 formerly inactive women who began exercising three times a week for six months was published in the journal Medicine & Science in Sports & Exercise. "Women who consumed additional meat or took iron supplements were able to bounce back," she notes. "But the new exercisers who followed their normal diet showed a significant decrease in iron levels." Iron deficiency is very common among women in general, affecting one in four female teenagers and one in five women aged 18 to 45, respectively. But the ratio is even greater among active women, affecting up to 80 percent of female endurance athletes. This means, Lyle says, that "too many women ignore the amount of iron they take in". Women of childbearing age are at greatest risk, since their monthly bleeding is a major source of iron loss. Plus, many health-conscious women increase their risk by rejecting red meat, which contains the most easily absorbed form of iron. And because women often restrict their diet in an effort to control weight, they may not consume enough iron-rich food, and are liable to experience a deficiency. "The average woman takes in only two thirds of the recommended daily allowance for iron," notes another expert. "For a woman who already has a poor iron status, any additional iron loss from exercise may be enough to tip her over the edge into a more serious deficiency," notes the expert. Exercise can result in iron loss through a variety of mechanisms. Some iron is lost in sweat, and, for unknown reasons, intense endurance exercise is sometimes associated with bleeding of the digestive system. The best sources of iron, and the only sources of the form of iron most readily absorbed by the body, are meat, chicken, and fish. Good sources of other forms of iron include dates, beans, and some leafy green vegetables.

单选题The travelers were ready to enjoy the spectacular tidal waves when suddenly a thick fog came up and obscured the whole scene.

单选题It is difficult to assess the importance of the decision.

单选题The dragon - boating day is ______ the death of Qu Yuan, the great poet in china.A. in accordance withB. in terms ofC. in favor ofD. in honor of

单选题Business Markets Are Big Business Internationally Business-to-business marketing is a significant economic activity internationally, as well as in the domestic U. S economy. Consider the following list of the largest exporting companies in the United States, ranked export sales volume in 1998: 1. General Motors. 2. Ford Motor Company. 3. Boeing (aircraft). 4. General Electric. 5. IBM. 6. Chrysler Motors. 7. Du Pont. 8. Mcdonnell Douglas(aircraft). 9. Caterpillar (earth-moving equipment). 10. United (earth-moving equipment). Seven of the top 10 firms export products to end users in the business market. Only the three auto firms market products for which some end users are household consumers. And even in these cases, the products first are exported to the business reseller market (wholesalers and retailers) in various parts of the world. Exporting by U. S. firms to international business markets increased during the 1980s, and this upward trend is likely to continue throughout the 1990s. In the early 1980s, for example, USX, the nation"s largest steel producer, abolished its export sales unit. Then near the end of that decade, the company assembled a new overseas sales them and exported 1 million tons of steel in 1989. POM. a small manufacturer of parking meters in Arkansas, has a larger market share overseas than at home. The firm sells to city governments in such farflung(遥远的) places as Malaysia, Chile, and Holland. And recently POM introduces its first solar—powered parking meter in Shepparton, Australia. The Mead Corp. Spent $550 million to expand and Alabama mill that produced coated paperboard(卡纸板), with the intent of exporting half of the plant"s output. The Mazda auto company planned to ship to Japan in one year $100 million of North American made auto parts. Business-to-business international marketing is not limited to physical products. Many service firms are finding very attractive business markets in foreign countries. Law firms and management consulting firms are setting up offices in Japan, Western Europe, and Russia. in the field of financial services. Japan"s huge banks are making significant inroads in the U. S. market. Some Japanese officials forecast that these bands could increase their share of the U.S. commercial bank market to 25 percent by the mid-1990s. Truly, the scope of international trade involving business markets is huge and is continuing to grow. The range of business goods and services that can be marketed internationally seems almost limitless.

单选题The staff of the company are always courteous and helpful.