单选题下列关于通气／血流比值的描述，哪项是错误的

单选题A．DA方案B．MP方案C．CHOP方案D．ABVD方案E．VDLP方案

单选题关于肝硬化代偿期的表现，下列哪一项是错误的

单选题下列哪种细菌性肺炎一般不出现肺脓肿改变A．流感嗜血杆菌B．军团菌C．肺炎克雷伯杆菌D．肺炎链球菌E．大肠杆菌

单选题对糖皮质激素治疗最为敏感的是

单选题下列那项不引起高排血量心力衰竭

单选题支气管哮喘和左心衰引起的喘息样呼吸困难的鉴别要点是

单选题形成多核巨细胞的细胞是

单选题Something extraordinary is happening in London this week: in Lambeth, one of the city's poorest boroughs(区), 180 children are starting their secondary education in a brand new school. The state- funded school was set up by parents who were fed up with the quality of local education. In countries with more enlightened education systems, this would be unremarkable. In Britain, it is an amazing achievement by a bunch of desperate and determined people after years of struggle. Britain's schools are in a mess. Average standards are not improving despite billions in extra spending, and a stubbornly long tail of underachievers straggles(拖后腿) behind. A couple of years ago, a consensus emerged among reformers that councils had too much control and parents too little. One might have expected more from the Conservatives, who stood for election on a pledge to bring in school vouchers. Yet the Tory policy group charged with thinking deep thoughts about public services paid only lip service to parent power in its report. Where schools are failing, it said, parents or charities should get taxpayers 'money to open new ones. But only 2.9% are actually failing, on official definitions. And another proposal, that children in failing schools get extra funding if they go elsewhere, was so lacking in detail as to be meaningless. Worry about underperforming schools is hardly confined to Britain: in America, in Italy, in Germany, even in once-proud France education is a hot-button topic. Yet a number of countries seem to have cracked it. Although specific problems differ in different societies, parental choice is at the heart of most successful solutions. What are the lessons? The first is that if a critical mass of parents wants a new school and there is a willing provider, local government should be required to finance it as generously as it does existing state schools. The second is that if a charity wants to open a school in the hope that children will come, then taxpayers' money should follow any that do. Third, rules about what, where and how schools teach should be relaxed to avoid stifling innovation and discouraging newcomers with big ideas. In any event, public-examination results would give parents the information they needed to enforce high standards. These proposals may seem radical, yet parents in the Netherlands have had the right to demand new schools since 1917, and those in Sweden have been free since 1992 to take their government money to any school that satisfies basic government rules. In the Netherlands 70% of children are educated in private schools at the taxpayers' expense; in Sweden 10% already are. In both countries state spending on education is lower per head than in Britain, and results are better. It doesn't take a genius IQ -- just a little political courage -- to draw the correct conclusion.

单选题A．血管炎B．出血性膀胱炎C．肺纤维化D．过敏性休克E．齿龈增生

单选题A．二甲双胍B．氯磺丙脲C．胰岛素D．格列喹酮

单选题引起咯血最常见的支气管-肺部疾病是

单选题下列哪项最有力支持早期休克

单选题哪种是T细胞淋巴瘤( )(1999年)

单选题下列哪项不是漏出性胸水的病因?

单选题A．维拉帕米B．洋地黄C．腺苷D．艾司洛尔

单选题A．胸腔积液白细胞＞1×10 10 ／L伴恶臭 B．血性胸腔积液，腺苷脱氨酶不高，胸腔积液抽后增长迅速 C．胸腔积液LDH／血清LDH＜0．6，胸腔积液细胞数＜100×10 6 ／L D．胸腔积液LDH／血清LDH＞0．6，胸腔积液腺苷脱氨酶明显升高

单选题男性，60岁，进食后呕吐，腹泻、抽搐、昏迷入院。既往有肝肿大和谷丙转氨酶偏高病史。查体：心率90次/分，BP152/88mmHg，肝右肋下3cm，质中度硬，表面平滑，脾未触及，血糖900mg/dl，血钠158mmol/L，血CO2结合力46容积%，血尿素氮25mg/dl，尿糖(+++)，尿酮体阴性，下列哪项诊断可能性最大A．脑血管意外B．糖尿病酮症酸中毒C．高渗性非酮症糖尿病昏迷D．肝性昏迷E．尿毒症

单选题A．舒张期奔马律B．二尖瓣开放拍击音C．心包叩击音D．收缩中晚期喀喇音

单选题A．环化─磷酸腺苷(cAMP)B．环化─磷酸鸟苷C．腺苷脱氨酶D．慢反应物质(SKS-A)E．前列环素(PGI)