与柯萨奇病毒感染有关的是
A群分16个血清型,B群分2个血清型, IgM抗体阳性提示既往感染
B. A群分18个血清型,B群分3个血清型, IgC抗体阳性提示现症感染
C. A群分20个血清型,B群分4个血清型, IgG抗体阳性提示既往感染
D. A群分22个血清型,B群分5个血清型, IgM抗体阳性提示现症感染
E. A群分24个血清型,B群分6个血清型. IgM抗体阳性提示现症感染
Most doctors in a recent survey said that annual physical examinations were effective with 1. ______detecting illness in apparently healthy patients, even there is little scientific evidence 2. ______to support the exams. The report found that physicians are largely unaware that 3. ______current federal government guidelines did not recommend annual exams for healthy adultswith symptoms. The study also suggested that in performing annual physicals many physicians 4. ______routinely order screening tests that had not been proved useful for patients with no symptoms. 5. ______Sixty-five percent of 783 physicians who completed a questionnaire maintained that 6. ______an annual physical was necessary, and 55 percent believed that annual physicals for healthyadults were recommended by national organizations. The researchers found that evenmany a doctors who were aware of published guidelines continued to perform annual physicals, 7. ______because patients wanted them, or because they believed the procedure gave them the chance 8. ______to offer advice about preventive health measures. Among the physicians, those are younger, 9. ______the women, the gynecologists and those in private practice were the most inclined ones to favor 10. _____annual exams.
Like many other aspects of the computer age, Yahoo began as an idea, (1) into a hobby and lately has (2) into a full-time passion. The two developers of Yahoo, David Filo and Jerry Yang, Ph. D candidates (3) Electrical Engineering at Stanford University, started their guide in April 1994 as a way to keep (4) of their personal interest on the Internet. Before long they (5) that their homebrewed lists were becoming too long and (6) . Gradually they began to spend more and more time on Yahoo.During 1994, they (7) yahoo into a customized database designed to (8) the needs of the thousands of users (9) began to use the service through the closely (10) Internet community. They developed customized software to help them (11) locate, identify and edit material (12) on the Internet. The name Yahoo is (13) to stand for "Yet Another Hierarchical Officious Orale", but Filo and Yang insist they selected the (14) because they considered themselves yahoos. Yahoo itself first (15) on Yang’s workstation, "akebono", while the search engine was (16) on Filo’s computer, "Konishiki".In early 1995 Marc Andersen, co-founder of Netscape Communication in Mountain View, California, invited Filo and Yang to move their files (17) to larger computers (18) at Netscape. As a result Stanford’s computer network returned to (19) , and both parties benefited. Today, Yahoo (20) organized information on tens of thousands of computers linked to the web. 10()
A. relative
B. interactive
C. bound
D. contacted
Lateral thinking, first described by Edward de Bono in 1967, is just a few years older than Edward’s son. You might imagine that Caspar was raised to be an adventurous thinker, but the de Bono name was so famous, Caspar’s parents worried that any time he would say something bright at school, his teachers might snap, "Where do you get that idea from" "We had to be careful and not overdo it," Edward admits. Now Caspar is at Oxford—which once looked unlikely because he is also slightly dyslexic. In fact, when he was applying to Oxford, none of his school teachers thought he had a chance. "So then we did several thinking sessions," his father says, "using my techniques and, when he went up for the exam, he did extremely well." Soon after, Edward de Bono decided to write his latest book, "Teach Your Child How to Think", in which he transforms the thinking skills he developed for brain-storming businessmen into informal exercises for parents and children to share. Thinking is traditionally regarded as something executed in a logical sequence, and everybody knows that children aren’t very logical. So isn’t it an uphill battle, trying to teach them to think "You know," Edward de Bono says, "if you examine people’s thinking, it is quite unusual to find faults of logic. But the faults of perception are huge! Often we think ineffectively because we take too limited a view." "Teach Your Child How to Think" offers lessons in perception improvement, of clearly seeing the implications of something you are saying and of exploring the alternatives. What is TRUE about Caspar
A. He is Edward’s son.
B. He is an adventurous thinker.
C. He first described lateral thinking.
D. He is often scolded by his teacher.