学科分类

已选分类 医学临床医学外科学
单选题男,60岁,因胃溃疡合并反复大出血,行胃大部切除术。
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单选题肠套叠的三大典型症状是( )(2005年)
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单选题男,35岁,进行性吞咽困难4个月,现能进流质。X线钡剂食管检查显示:食管中段有7cm的充盈缺损,正确的处理是
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单选题 不宜膀胱镜检查的是 ( ) A、尿道狭窄 B、排尿困难 C、血块尿 D、膀胱结核 E、膀胱肿瘤
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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 central 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 stock market 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.
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单选题应放置T形管引流的手术是( )
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单选题清创过程中,下列哪项操作是不恰当的
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单选题高位选择性胃迷走神经切断术的要点:
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单选题A.同种异体移植B.异种移植C.结构移植D.组织移植
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单选题女,53岁,发现左乳房肿块7天。查体:左乳房外上象限距乳头1cm处可扪及2cm×1.5cm大小质硬肿块,边界不清,未固定于胸壁,腋窝未触及肿大淋巴结。活组织病理检查证实为乳腺癌,应采用的手术方式是
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单选题A.斜形骨折B.横形骨折C.粉碎性骨折D.螺旋形骨折
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单选题诊断甲亢简便易行的方法是:
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单选题肾结核最常见的临床表现是
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单选题21岁女性患者,反复水肿3月,血压140/85mmHg,血红蛋白130g/L,尿蛋白5.2g/L,红细胞阴性,血肌酐8%moI/L,血白蛋白25g/L。最可能的诊断为
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单选题慢性。肾炎患者,近10天来出现厌食,恶心,乏力。来急诊时,首先宜查( )(1990年)
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单选题 治疗滴虫性阴道炎最常用的药物是( ) A、青霉素 B、诺氟沙星 C、甲硝唑 D、制霉菌素 E、头孢拉定
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单选题关于肱骨髁上骨折的叙述错误的是
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单选题下列CT影像中,最支持胰腺癌诊断的是( )(2005年)
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单选题男性,40岁,血吸虫性肝硬化伴严重脾肿大及血小板减少,有上消化道出血史,胃镜示食管静脉重度曲张。该患者的最佳治疗方法是A.单纯脾切除术B.门腔静脉分流术C.脾肾静脉分流术D.脾切除加贲门周围血管离断术E.曲张静脉套扎术
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