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男性，65岁。慢性阻塞性肺疾病7年。10天前受凉后发热，咳嗽加重，痰黏难咳，2天来神志欠清，发绀、躁动，入院查体双肺呼吸音低，有干湿性啰音，白细胞计数及分类增高。 为提供有效治疗，首要检查手段是下列哪项
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[听力原文]11-15You might wonder where the largest library in the world is. Now, I can tell you the answer, it’s in Washington D. C.. It’s called the Library of Congress. President John Adams started the library in 1800 for members of Congress. He wanted them to be able to read books about law. The first 740 books were bought in England. They were simply stored in the room where Congress met. Then Thomas Jefferson sold Congress many of his own books. He felt Congress should read books on all subjects, not just on law. This idea changed the library for good. Now the library contains 20 million books as well as scores of pictures, movies, globes and machines. Experts in every field work there. Hundreds of people visit every day with all kinds of questions. Many of them get answers right over the phone. Where is the world’s largest library？It’s in（）.
For three decades we’’ve heard endlessly about the virtues of aerobic (increasing oxygen consumption) exercise. Medical authorities have praised running and jumping as the key to good health, and millions of Americans have taken to the treadmill(踏车) to reap the rewards. But the story is changing. Everyone from the American Heart Association to the surgeon general’’s office has recently embraced strength training as a complement to aerobics. And as weight lifting has gone mainstream, so has the once obscure practice known as "Super Slow" training. Enthusiasts claim that by pumping iron at a snail’’s pace-making each "rep"(repeat) last 14 seconds instead of the usual seven-you can safely place extraordinary demands on your muscles, and call forth an extraordinary response. Slow lifting may not be the only exercise you need, as some advocates believe, but the benefits are often dramatic. Almost anyone can handle this routine. The only requirements are complete focus and a tolerance for deep muscular burn. Fox each exercise-leg press, bench press, shoulder press and so on-you set the machine to provide only moderate resistance. But as you draw out each rep, depriving yourself of impetus, the weight soon feels unbearable. Defying the impulse to stop, you keep going until you can’’t complete a rep. Then you sustain your vain effort for 10 more seconds while the weight sinks gradually toward its cradle. Intense Uncomfortable Totally. But once you embrace muscle failure as the goal of the workout, it can become almost pleasure. The goal is not to burn calories while you’’re exercising but to make your body burn them all the time. Running a few miles many make you sweat, but it expends only 100 calories per mile, and it doesn’’t stimulate much bone or muscle development. Strength training doesn’’t burn many calories, either. But when you push a muscle to failure, you set off a pour of physiological changes. As the muscle recovers over several days, it will thicken-and the new muscle tissue will demand sustenance. By the time you add three pounds of muscle, your body requires an extra 9,000 calories a month just to break even. Hold your diet steady and, very quickly, you are vaporizing body fat. One might have benefited from any strength-training program. But advocates insist the slow technique is safer and more effective than traditional methods. According to the author," Super Slow" training
Conversation 2Questions 8 to 10 are based on the following conversation.[听力原文]8-10W: Good afternoon, sir. May I see your passport, pleaseM: Of course. Here you are.W: What is the purpose of your visit Business or pleasureM: Pleasure.W: I see. How long will you be staying in the U. S.M: Two weeks. I’ll be leaving on June 10th.W: Where do you intend to visit while in the countryM: LA first, then I’ll be heading on to New York City.W: Do you have a return ticket to ChinaM: Yes, however, I’ll be returning via Japan—not going back to China directly. How many cities will the man visit in the U. S.（）
根据以下资料，回答下列问题。 2011年全国农民工总量达到25278万人，比上年增加1055万人，增长4.4%。农民工从业仍以制造业、建筑业和服务业为主，从事建筑业的比重明显提高。从农民工的就业地区来看，2011年在东部地区务工的农民工16537万人，比上年增加324万人；在中部地区务工的农民工4438万人，比上年增加334万人，增长8.1%；在西部地区务工的农民工4215万人，比上年增加370万人，增长9.6%。 2008～2011年农民工从事的主要行业分布 单位：% 2008年 2009年 2010年 2011年 制造业 37.2 36.1 36.7 36.0 建筑业 13.8 15.2 16.1 17.7 交通运输、仓储和邮政业 6.4 6.8 6.9 6.6 批发零售业 9.0 10.0 10.0 10.1 住宿餐饮业 5.5 6.0 6.0 5.3 居民服务和其他服务业 12.2 12.7 12.7 12.2 2011年农民工在不同地区从事的主要行业分布 单位：% 全国 东部地区 中部地区 西部地区 制造业 36.0 44.8 23.0 15.4 建筑业 17.7 13.4 24.7 27.4 交通运输、仓储和邮政业 6.6 15.5 8.1 9.3 批发零售业 10.1 8.7 13.1 12.5 住宿餐饮业 5.3 4.5 15.9 7.3 居民服务和其他服务业 12.2 12.3 11.4 12.2 2008～2011年从事建筑业、批发零售业、居民服务和其他服务业的农民工人数总和超过从事制造业的农民工人数的年份有( )。
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