单选题男性，60岁，咳嗽，咳痰20年，有高血压、肝炎病史。查体：BP150／83mmHg，肺肝界位于第6肋间。心界缩小，心率110次／分，律不齐，P Ⅱ 亢进，胸骨左缘第5肋间可闻及收缩期杂音。肝肋下3．5cm，双下肢浮肿。心电图报告：顺钟向转位，V 1 、V 2 、V 3 呈QS型。

单选题判断心功能失代偿的主要依据是

单选题与类风湿关节炎活动无关的是( )(2002年)

单选题血气分析结果显示：PaO 2 下降，PaCO 2 不升高，pH正常，HCO 3 一 不升高。符合的疾病是

单选题男性，35岁，因发作性高血压伴头痛、心悸入院，血压最高时210／140mmHg，诊断为嗜铬细胞瘤，宜选择下列哪种药物做术前准备

单选题男性，68岁。确诊慢性阻塞性肺病近10年，因呼吸困难一直需要家人护理和照顾起居。晨起大便时突然气急显著加重，伴胸痛，送来急诊。

单选题慢性粒细胞性白血病时，肝内白血病细胞浸润的部位是A．集中在被膜下B．集中在中央静脉周围C．集中在汇管区内D．弥散在肝窦内E．集中在小叶下静脉周围

单选题不支持肠易激综合征诊断的临床表现是( )(2005年)

单选题肺血栓栓塞症最常见的心电图改变是

单选题男性，55岁，感口干、食量增大、体重减轻3月余，既往有“脑梗塞”病史。查空腹血糖8．3mmol/L，未重视，未经治疗。今晨起时发现患者昏迷不醒。入院后查体：血压130/75mmHg，心率102次/分，呼吸18次/分，皮肤潮湿，脉搏饱满。

单选题肺心病时，下列哪一种病变最不容易见到

单选题When it comes to the slowing economy, Ellen Spero isn't biting her nails just yet. But the 47-year-old manicurist isn't cutting, filling or polishing as many nails as she'd like to, either. Most of her clients spend $12 to $50 weekly, but last month two longtime customers suddenly stopped showing up. Spero blames the softening economy. "I'm a good economic indicator," she says. "I provide a service that people can do without when they're concerned about saving some dollars." So Spero is downscaling, shopping at middle-brow Dillard's department store near her suburban Cleveland home, instead of Neiman Marcus. "I don't know if other clients are going to abandon me, too," she says. Even before Alan Greenspan's admission that America's red-hot economy is cooling, lots of working folks had already seen signs of the slowdown themselves. From car dealerships to Gap outlets, sales have been lagging for months as shoppers temper their spending. For retailers, who last year took in 24 percent of their revenue between Thanksgiving and Christmas, the cautious approach is coming at a crucial time. Already, experts say, holiday sales are off 7 percent from last year's pace. But don't sound any alarms just yet. Consumers seem only mildly concerned, not panicked, and many say they remain optimistic about the economy's long-term prospects, even as they do some modest belt-tightening. Consumers say they're not in despair because, despite the dreadful headlines, their own fortunes still feel pretty good. Home prices are holding steady in most regions. In Manhattan, "there's a new gold rush happening in the $4 million to $10 million range, predominantly fed by Wall Street bonuses," says broker Barbara Corcoran. In San Francisco, prices are still rising even as frenzied overbidding quiets. "Instead of 20 to 30 offers, now maybe you only get two or three," says John Tealdi, a Bay Area real-estate broker. And most folks still feel pretty comfortable about their ability to find and keep a job. Many folks see silver linings to this slowdown. Potential home buyers would cheer for lower interest rates. Employers wouldn't mind a little fewer bubbles in the job market. Many consumers seem to have been influenced by stock-market swings, which investors now view as a necessary ingredient to a sustained boom. Diners might see an upside, too. Getting a table at Manhattan's hot new Alain Ducasse restaurant used to be impossible. Not anymore. For that, Greenspan ~ Co. may still be worth toasting.

单选题胰岛素依赖型糖尿病(1型)与非胰岛素依赖型糖尿病(2型)的最主要区别是A．发病年龄不同B．对胰岛素的敏感性不同C．胰岛素基础水平与释放曲线不同D．发生酮中毒的倾向不同E．血糖稳定性不同

单选题A．心脏神经症B．心绞痛C．心肌梗死D．肺梗死E．气胸

单选题硫脲类抗甲状腺药物的主要作用是A．使体内甲状腺激素作用减弱B．抑制碘的吸收C．抑制甲状腺激素合成D．抑制甲状腺激素的释放E．抑制促甲状腺激素的作用

单选题A．排钾保钠B．保钙排磷C．保钙保磷D．排钙排磷

单选题女性，23岁，间断发热1个月，体温最高达39．6℃，伴有干咳，双手及足多关节肿痛，无晨僵，化验血WBC3．0×10 9 ／L，Hb 72g／L，RF、(+)，ANA1：80斑点型，应考虑诊断为

单选题有关急性暴发性流脑的捕述中，哪项是不正确的A．起病急，进展快，死亡率高B．脑膜病变重C．常伴中毒性休克D．由脑膜炎双球菌释放的大量内毒素所致E．常伴肾上腺皮质出血和功能衰竭

单选题A．起搏器植入B．异丙基肾上腺素C．临床观察心律变化D．药物控制心室率

单选题心房颤动最常见的病因是