单选题前尿道断裂的正确处理是（ ）

单选题 隆鼻术时假体过长或过厚，常引起的并发症有 ( ) A、驼峰鼻 B、穿破皮肤或粘膜 C、感染 D、鼻部光照阴影 E、鼻假体漂浮感

单选题Wherever people have been, they have left waste behind, which can cause all sorts of problems. Waste often stinks, attracts vermin and creates eyesores. More seriously, it can release harmful chemicals into the soil and water when dumped, or into the air when burned. And then there are some really nasty forms of industrial waste, such as spent nuclear fuel, for which no universally accepted disposal methods’ have thus far been developed. Yet many also see waste as an opportunity. Getting rid of it all has become a huge global business. Rich countries spend some $120 billion a year disposing of their municipal waste alone and another $150 billion on industrial waste. The amount of waste that countries produce tends to grow in tandem with their economies, and especially with the rate of urbanization. So waste firms see a rich future in places such as China, India and Brazil, which at present spend only about $5 billion a year collecting and treating their municipal waste. Waste also presents an opportunity in a grander sense: as a potential resource. Much of it is already burned to generate energy. Clever new technologies to turn it into fertiliser or chemicals or fuel are being developed all the time. Visionaries see a world without waste, with rubbish being routinely recycled. Until last summer such views were spreading quickly. But since then plummeting prices for virgin paper, plastic and fuels, and hence also for the waste that substitutes for them, have put an end to such visions. Many of the recycling firms that had argued rubbish was on the way out now say that unless they are given financial help, they themselves will disappear. Subsidies are a bad idea. Governments have a role to play in the business of waste management, but it is a regulatory and supervisory one. They should oblige people who create waste to clean up after themselves and ideally ensure that the price of any product reflects the cost of disposing of it safely. That would help to signal which items are hardest to get rid of, giving consumers an incentive to buy goods that create less waste in the first place. That may sound simple enough, but governments seldom get the rules right. In poorer countries they often have no rules at all, or if they have them they fail to enforce them. In rich countries they are often inconsistent: too strict about some sorts of waste and worryingly lax about others. They are also prone to imposing arbitrary targets and taxes. California, for example, wants to recycle all its trash not because it necessarily makes environmental or economic sense but because the goal of “zero waste” sounds politically attractive.

单选题下列各项中，不符合DIC诊断标准的是

单选题 嗜铬细胞瘤代谢特点是（ ） A、高血压、低血糖、低代谢 B、低血压、低血糖、低代谢 C、高血压、高血糖、高代谢 D、低血压、高血糖、高代谢 E，高血压、低血糖、高代谢

单选题急性胰腺炎发病12小时以内，哪一项实验室检查诊断比较准确( )(1995年)

单选题7岁男孩，突发寒战、高热（T39.8℃），烦躁不安，诉右膝下方剧痛，膝关节呈半屈曲状，拒动。查体发现右小腿近端皮温尚可，压痛。

单选题 下列关于颅裂的临床表现不正确的是（ ） A、CT检查不能清楚显示是否合并脑发育不全 B、位于枕部，颅骨缺损直径可大可小，大可至数厘米，小可至数毫米 C、位于颅底的显性颅裂常在鼻根部，可堵塞鼻腔引起呼吸困难 D、位于颅盖部的脑膜脑膨出，可有肢体瘫痪、痉挛或抽搐等脑损害征象 E、单纯的脑膜膨出未合并其他脑畸形者，可无神经系统症状，智力发育也不受影响

单选题10个月发育性髋关节脱位轻症患儿的治疗宜采用

单选题A．右上腹突发剧痛，局部有腹膜刺激征B．上腹饱胀，呕吐食物和胆汁C．上腹部突发剧痛，频繁呕吐，不含胆汁D．进食后心悸、出汗、恶心、腹泻E．剑突下持续烧灼痛，进食后加重，抗酸剂无效

单选题25岁女性患者，颜面和双下肢水肿伴少尿5个月，查血压140／95mmHg，尿蛋白(+++)，红细胞(++)，血红蛋白105g／L，胆固醇10．2mmol／L，白蛋白21g／L，补体C3下降，血Cr145μmol／L。

单选题低钾血症最早出现的临床表现为

单选题A．体外冲击波碎石B．膀胱切开取石C．膀胱镜机械碎石D．中药排石E．自行排石

单选题男，60岁，因胃溃疡合并反复大出血，行胃大部切除术。

单选题肠套叠的三大典型症状是( )(2005年)

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

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

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.

单选题应放置T形管引流的手术是（ ）

单选题清创过程中，下列哪项操作是不恰当的