单选题有机磷中毒的诊断中，有确诊意义的是

单选题不符合大肠癌发生发展的描述是

单选题护士指导慢性阻塞性肺病病人作哪种呼吸运动（ ）

单选题减少假性神经递质形成的药物是

单选题符合十二指肠溃疡的描述是

单选题A．Ewart征B．心包摩擦音C．心音低钝D．奇脉E．心包叩击音

单选题第一心音减弱最常见于下列哪种情况

单选题下述哪个肯定不是低色素小细胞性贫血( )(1992年)

单选题不属于肺大泡特点的是

单选题只见于萎缩性胃炎的黏膜变化是

单选题对慢性阻塞性肺疾病的诊断和病情严重程度的判断最有意义的检查是

单选题结核病的特征性病变是

单选题同肝细胞癌的发生关系不密切的是

单选题Perhaps only a small boy trained to be a wizard at the Hogwarts School of Magic could cast a spell so powerful as to create the biggest book launch ever. Wherever in the World the clock strikes midnight on June 20th, his followers will flock to get their paws on one of more than 10m copies of "Harry Potter and the Order of the Phoenix". Bookshops will open in the middle of the night and delivery firms are drafting in extra staff and bigger trucks. Related toys, games, DVDs and other merchandise will be everywhere. There will be no escaping Potter mania. Yet Mr. Potter's world is a curious one, in which things are often not what they appear. While an excitable media (hereby including The Economist, happy to support such a fine example of globalization) is helping to hype the launch of J. K. Rowling's fifth novel, about the most adventurous thing that the publishers have organized is a reading by Ms. Rowling in London's Royal Albert Hall, to be broadcast as a live web cast. Hollywood, which owns everything else to do with Harry Potter, says it is doing even less. Incredible as it may seem, the guardians of the brand say that, to protect the Potter franchise, they are trying to maintain a low profile. Well, relatively low. Ms. Rowling signed a contract in 1998 with Warner Brothers, part of AOL Time Warner, giving the studio exclusive film, licensing and merchandising rights in return for what now appears to have been a steal: some $ 500,000. Warner licenses other firms to produce goods using Harry Potter characters or images, from which Ms. Rowling gets a big enough cut that she is now wealthier than the queen--if you believe Britain's Sunday Times rich list. The process is self-generating: each book sets the stage for a film, which boosts book sales, which lifts sales of Potter products. Globally, the first four Harry Potter books have sold some 200m copies in 55 languages; the two movies have grossed over $1.8 billion at the box office. This is a stunning success by any measure, especially as Ms Rowling has long demanded that Harry Potter should not be over-commercialized. In line with her wishes, Warner says it is being extraordinarily careful, at least by Hollywood standards, about what it licenses and to whom. It imposed tough conditions on Coca-Cola,. insisting that no Harry Potter images should appear on cans, and is now in the process of making its licensing programmed even more restrictive. Coke may soon be considered too mass market to carry the brand at all. The deal with Warner ties much of the merchandising to the films alone. There are no officially sanctioned products relating to "Order of the Phoenix"; nor yet for "Harry Potter and the Prisoner of Azkaban", the film of the third book, which is due out in June 2004. Warner agrees that Ms. Rowling's creation is a different sort of commercial property, one with long-term potential that could be damaged by a typical Hollywood marketing blitz, says Diane Nelson, the studio's global brand manager for Harry Potter. It is vital, she adds, that with more to come, readers of the books are not alienated. "The evidence from our market research is that enthusiasm for the property by fans is not warning./

单选题某一诊断为冠心病、急性下壁心肌梗死的患者，突发晕厥约几分钟，最可能的诊断为

单选题You might guess that experienced drivers have fewer accidents, but research from insurer AXA has revealed that they are more law-abiding and honest, too. A poll of 2 000 drivers in the UK found that those who have been behind the wheel for eight years or more had not only caused half as many accidents in the last year as less experienced drivers, but were also less likely to have broken the law or lied to their insurer. Experienced drivers were half as likely to have been caught using a mobile phone while driving within the last year; and a third as likely to have been caught driving under the influence of alcohol or drugs, or to have been convicted of dangerous driving. They were also a fifth as likely to have been convicted of driving without a seatbelt. Dishonest behavior appears to be much more common among newer drivers. The UK's experienced drivers have always been an attractive group for insurers, but the much lower risk they present is rarely fully reflected in their premiums. This is why AXA has entered the direct car insurance market with a product that rewards them with a no-claims discount of up to 90 percent--far higher than anything else on the market. Only those drivers who have been claim-free for eight years or more will be eligible, which could offer large savings for around a third of motorists. AXA's research has enabled it to tailor not only the pricing to these expert drivers, but the service, too. AXA Car Insurance will offer a courtesy ear whenever yours is out of action due to accident, fire or theft, not just while it's being repaired. The survey found they wanted higher service levels too, so customers will be able to change their policy details online or track a claim at any hour of the day or night, every day of the year. Many drivers wrongly assumed they were insured if they were injured in accidents that are their faults. To plug the gap, AXA has introduced Driver Injury Cover,which pays up to ￡1 million for medical treatment and loss of earnings for an additional annual premium of ￡34.99--less than ￡3 a month. Cocky newer drivers do appear to be somewhat overconfident. A third of those who'd been on the road for between only one and two years claimed they were already experienced drivers, and that rose to a half among those who'd been driving for just one more year. But, as AXA's survey demonstrates, they have still got a lot to learn., they will need to be driving for at least five more years before they can take advantage of that 90 per cent no-claims discount.

单选题中度持续发作的支气管哮喘患者应用糖皮质激素的原则是A．长期口服5～10mg泼尼松B．长期吸入二丙酸倍氯米松≤400μg/dC．长期吸入二丙酸倍氯米松200～1000μg/dD．间断吸入激素加长期应用支气管扩张剂E．一次性大剂量激素冲击治疗

单选题患者，女，60岁，有喘息性支气管炎病史20余年，近2年有下肢浮肿。5天前受凉，咳嗽加重，彻夜不眠，意识模糊伴躁动不安。尿常规检查正常。血气分析显示：pH7．14，PaCO 2 48mmHg，PaCO 2 85mmHg，HCO 3 - 30mmol／L。符合下列哪一项酸碱平衡失常

单选题哪项急性风湿病变伴发心肌炎的几率最低

单选题A．心尖部抬举性搏动B．心前区收缩期搏动C．心底部抬举性搏动D．胸骨上窝抬举性搏动E．右颈部异常搏动 (1994年)