单选题A．左上肢麻木，下肢无力 B．双上、下肢无力C．双下肢无力 D．左下肢痛觉消失，右下肢肌力消失

单选题血液中各种成分的含量大多随贮存时间的延长而下降，只有下列哪一种例外A．红细胞的生活力B．钾离子浓度C．pHD．血小板的活性E．红细胞携带氧的能力

单选题化脓性关节炎早期诊断中，最有价值的方法是A．关节活动度检查B．X线平片C．MRI检查D．关节液检查E．手术探查

单选题下列关于颈部肿块的叙述，哪项错误( )(2000年)

单选题遇到一个肉眼血尿的病人。下列哪项检查对诊断帮助最大

单选题在泌尿系统各部位肿瘤中治疗效果最好的是

单选题休克时儿茶酚胺大量释放能促进何种物质生成（ ）

单选题 18岁男性患者右髋关节进行性肿胀，疼痛1个月余，曾拟为“化脓性关节炎”，经抗炎治疗，症状无明显好转，右髋关节正位片如图所示，最可能的诊断是 ( ) A、右髋关节软骨肉瘤 B、右髋关节滑膜肉瘤 C、右髋关节纤维肉瘤 D、右髋关节化脓性关节炎 E、右髋关节Ewing肉瘤

单选题 男.80岁，排尿困难3年，尿潴留12小时.既往：高血压冠心病.查：一般状态差，膀胱底达脐下一横指，右睾丸附睾肿大，触疼明显;BUN22.5mmol/L。下面哪项治疗最合适? A、耻骨上穿刺抽出尿液 B、经尿道前列腺电切术 C、口服竹林安 D、膀胱穿刺造瘘 E、留置导尿

单选题对慢性化脓性骨髓炎最有意义的诊断依据是

单选题男，48岁，左侧腰部疼痛4个月。1年前左肾下盏结石ESWL治愈。CT显示左肾下极多发性结石，下肾盏明显扩张伴肾实质萎缩，但左。肾中上盏显影良好。最适宜治疗方法是

单选题可以用于判断双肾功能的检查是（ ）

单选题下列关于营养途径的选择，错误的是

单选题下列哪一疾病的上腹痛可采取左侧卧位而缓解A．消化性溃疡B．钩虫病C．慢性胃炎D．胃黏膜脱垂症E．十二指肠炎

单选题下列哪项关于中心静脉压的叙述是错误的( )(1999年)

单选题患者，男性，53岁，汽车撞伤3小时，急诊入院，检查：骨盆骨折，左股骨干骨折及左胫腓骨开放性骨折，入院后首先应密切观察的是哪一种并发症

单选题轻微病变性肾小球肾炎的特征性病变是A．系膜细胞增生B．系膜细胞及内皮细胞增生C．脏层上皮细胞足突融合D．壁层上皮细胞及巨噬细胞增生

单选题When there is blood in the water, it is only natural that dorsal fins swirl around excitedly. Now that America's housing market is ailing, predators have their sights on the country's credit-card market. Analysts at Goldman Sachs reckon that credit-card losses could reach $ 99 billion if contagion spreads from subprime mortgages to other forms of consumer credit. Signs of strain are clearly visible. There are rises in both the charge-off and delinquency rates, which measure the share of balances that are uncollectable or more than 30 days late respectively. HSBC announced last month that it had taken a $1.4 billion charge in its American consumer-finance business, partly because of weakness among card borrowers. It is too early to panic, though. Charge-offs and delinquencies are still low. According to Moody's, a rating agency, the third-quarter delinquency rate of 3.89% was almost a full percentage point below the historical average. The deterioration in rates can be partly explained by technical factors. A change in America's personal-bankruptcy laws in 2005 led to an abrupt fall in bankruptcy filings, which in turn account for a big chunk of credit-card losses ; the number of filings (and thus charge-off rates) would be rising again, whether or not overall conditions for borrowers were getting worse. The industry also reports solid payment rates, which show how much of their debt consumers pay off each month. And confidence in credit-card asset-backed securities is pretty firm despite paralysis in other corners of structured finance. Dennis Moroney of Tower Group, a research firm, predicts that issuance volumes for 2007 will end up being 25% higher than last year. Direct channels of infection between the subprime-mortgage crisis and the credit-card market certainly exist: consumers are likelier to load up on credit-card debt now that home- equity loans are drying up. But card issuers look at cash flow rather than asset values, so falling house prices do not necessarily trigger a change in borrowers' creditworthiness. They may even work to issuers' advantage. The incentives for consumers to keep paying the mortgage decrease if properties are worth less than the value of the loan; card debt rises higher up the list of repayment priorities as a result. Card issuers are also able to respond much more swiftly and flexibly to stormier conditions than mortgage lenders are, by changing interest rates or altering credit limits. That should in theory reduce the risk of a rapid repricing of assets. "We are not going to wake up one day and totally revalue the loans," says Gary Perlin, Capital One' s chief financial officer. If a sudden subprime-style meltdown in the credit-card market is improbable, the risks of a sustained downturn are much more real. If lower house prices and a contraction in credit push America into recession, the industry will undoubtedly face a grimmer future. Keep watching for those dorsal fins.

单选题女，40岁，大量饮酒后上腹部剧烈疼痛8小时，疼痛为持续性。查体：T38.5℃，上腹部压痛、反跳痛。血常规：WBE17.1×10 9 ／L，中性粒细胞0.83；血淀粉酶605索氏单位，尿淀粉酶195索氏(Somogyi)单位，诊断首先考虑为