单选题 导致女性假两性畸形的原因是：（ ） A、雌激素水平升高 B、雄激素水平升高 C、雌激素水平降低 D、雄激素水平降低 E、催乳素水平升高

单选题下列关于休克的治疗原则，错误的是

单选题手指屈肌腱狭窄性腱鞘炎错误的是

单选题以下属于闭合伤的是

单选题开放性气胸，需迅速封闭伤口，其最主要目的是

单选题休克的特殊监测，下列哪一项不正确

单选题男，60岁。右腹股沟可复性包块4年，近1年来排尿困难，患者一般情况好，最恰当的处理方法是

单选题女性，20岁，因十二指肠溃疡所致幽门梗阻引起反复呕吐15天入院，测得血钾值为3mmol／L，动脉血pH7．5，首选补液种类应为

单选题青年女性突然出现尿频、尿急、尿痛和下腹不适，不宜哪种检查

单选题男性，82岁。前天饮酒后出现腹部胀痛，小便频，量少，逐渐加重。平时大便干燥，2～3天1次。查体：腹部膨隆，下腹为著，全腹压痛，下腹更重，肌紧张不明显，肠鸣音活跃。经肥皂水灌肠后，排出较多粪块，腹痛无明显缓解。此患者最可能的诊断是

单选题细菌性肝脓肿，细菌侵入肝的主要途径是

单选题子宫内膜腺瘤样增生的特点是

单选题导致气性坏疽的致病菌是

单选题 血精最常见的原因是：（ ） A、精囊腺炎 B、前列腺炎 C、后尿道炎 D、后尿道充血 E、邻近其他器官炎症蔓延

单选题低位急性小肠梗阻的全身变化不包括

单选题全麻时易出现高热的是

单选题"You are not here to tell me what to do. You are here to tell me why I have done what I have already decided to do," Montagu Norman, the Bank of England's longest-serving governor (1920-1944), is reputed to have once told his economic adviser. Today, thankfully, central banks aim to be more transparent in their decision making, as well as more rational. But achieving either of these things is not always easy. With the most laudable of intentions, the Federal Reserve, America's central bank, may be about to take a step that could backfire. Unlike the Fed, many other central banks have long declared explicit inflation targets and then set interest rates to try to meet these. Some economists have argued that the Fed should do the same. With Alan Greenspan, the Fed's much-respected chairman, due to retire next year-after a mere 18 years in the job-some Fed officials want to adopt a target, presumably to maintain the central bank's credibility in the scary new post-Greenspan era. The Fed discussed such a target at its February meeting, according to minutes published this week. This sounds encouraging. However, the Fed is considering the idea just when some other central banks are beginning to question whether strict inflation targeting really works. At present centra1 banks focus almost exclusively on consumer-price indices. On this measure Mr. Greenspan can boast that inflation remains under control. But some central bankers now argue that the prices of assets, such as houses and shares, should also somehow be taken into account. A broad price index for America which includes house prices is currently running at 5.5%, its fastest pace since 1982. Inflation has simply taken a different form. Should central banks also try to curb increases in such asset prices? Mr. Greenspan continues to insist that monetary policy should not be used to prick asset-price bubbles. Identifying bubbles is difficult, except in retrospect, he says, and interest rates are a blunt weapon: an increase big enough to halt rising prices could trigger a recession. It is better, he says, to wait for a housing or stockmarket bubble to burst and then to cushion the economy by cutting interest rates-as he did in 2001-2002. And yet the risk is not just that asset prices can go swiftly into reverse. As with traditional inflation, surging asset prices also distort price signals and so can cause a misallocation of resources-encouraging too little saving, for example, or too much investment in housing. Surging house prices may therefore argue for higher interest rates than conventional inflation would demand. In other words, strict inflation targeting-the fad of the 1990s-is too crude.

单选题急性肾衰少尿或无尿期可造成病人死亡的常见原因是

单选题原发性腹膜炎多发生于：

单选题3岁以内儿童股骨干骨折的治疗一般采用