单选题 下列哪项关于强直性脊柱炎的说法是错误的 ( ) A、发病一般在15岁以后，男性多于女性 B、早期骶髂关节及下腰部痛，休息时减轻，活动时加重，后期腰部僵硬，活动受限，逐渐向上发展，可有驼背畸形 C、病变可遍及全身各关节，并出现关节僵硬和强直 D、X线片示两侧骶髂关节密度增高，椎间小关节硬化，脊柱呈竹节样改变 E、是属结缔组织的血清阴性反应疾病

单选题3岁男性患者，因肺炎并发休克，24小时尿量350m1，血肌酐325μmol／L，临床上考虑出现急性肾小管坏死。则其尿液诊断指标检查最可能是

单选题60岁男性，六个月前因车撞伤右大腿致右股骨开放骨折，在当地医院行内固定术后，切口有少量脓汁渗出，创口肉芽组织突起。X线下片：骨折断端有层状致密新骨形成，其中骨折片边界清楚，最可能的诊断：

单选题紧贴肱骨干中、下1/3走行的神经是（ ）

单选题A．第1～2肋B．第2～4肋C．第4～7肋D．第8～10肋

单选题 癌的概念是 A、来自肌肉组织的肿瘤 B、来自肌肉组织的恶性肿瘤 C、来自间叶组织的恶性肿瘤 D、来自上皮组织的恶性肿瘤 E、来自平滑肌的恶性肿瘤

单选题卧床、无发热或异常消耗的成年男性病人每天最低热卡需要是A．15～20kcaL/kg体重B．25～30kcal/kg体重C．30～50kcal/kg体重D．50～60kcal/kg体重E．75kcal/kg体重

单选题It may turn out that the "digital divide"--one of the most fashionable political slogans of recent years--is largely fiction. As you will recall, the argument went well beyond the unsurprising notion that the rich would own more computers than the poor. The disturbing part of the theory was that society was dividing itself into groups of technology "haves" and "have-nots" and that this segregation would, in turn, worsen already large economic inequalities. It is this argument that is either untrue or wildly exaggerated. We should always have been suspicious. After all, computers have spread quickly because they have become cheaper to buy and easier to use. Falling prices and skill requirements suggest that the digital divide would spontaneously shrink--and so it has. Now, a new study further discredits the digital divide. The study, by economist David Card of the University of California, Berkeley, challenges the notion that computers have significantly worsened wage inequality. The logic of how this supposedly happens is straightforward: computers raise the demand for high-skilled workers, increasing their wages. Meanwhile, computerization--by automating many routine tasks--reduces the demand for low-skilled workers and, thereby, their wages. The gap between the two widens. Superficially, wage statistics support the theory. Consider the ratio between workers near the top of the wage distribution and those near the bottom. Computerization increased; so did the wage gap. But wait, point out Card and DiNardo. The trouble with blaming computers is that the worsening of inequality occurred primarily in the early 1980s. With computer use growing, the wage gap should have continued to expand, if it was being driven by a shifting demand for skills. Indeed, Card and DiNardo find much detailed evidence that contradicts the theory. They conclude that computerization does not explain "the rise in U.S. wage inequality in the last quarter of the 20th century." The popular perception of computers' impact on wages is hugely overblown. Lots of other influences count for as much, or more. The worsening of wage inequality in the early 1980s, for example, almost certainly reflected the deep 1981--1982 recession and the fall of inflation. Companies found it harder to raise prices. To survive, they concluded that they had to hold down the wages of their least skilled, least mobile and youngest workers. The "digital divide" suggested a simple solution (computers) for a complex problem (poverty). With more computer access, the poor could escape their lot. But computers never were the source of anyone's poverty and, as for escaping, what people do for themselves matters more than what technology can do for them.

单选题 男性农民，34岁，因右上腹痛伴发烧2周来门诊检查。体检:急性病容，体温38℃，巩膜不黄，肝区叩痛明显，肝脾未扪及。X线透视右膈肌抬高，WBC12×10的9次方/L。进一步应首选哪项检查? A、肝核素扫描 B、肝动脉造影 C、B超 D、静脉胆道造影 E、诊断性肝穿刺

单选题关于甲状腺机能亢进的叙述，下列哪项是错误的( )(1995年)

单选题 下述哪一项不是食管癌早期症状? A、梗噎感 B、进食时胸骨后针刺样疼痛 C、食管内异物感 D、饮食时烧灼感 E、进行性吞咽困难

单选题直肠癌的最早期症状是：

单选题创伤后或手术中止血带使用不当导致最严重后果是

单选题患者，女，45岁。经常头晕、头痛，有时突然晕倒，随后很快清醒，偶有视物不清。检查：压头试验阳性，颈椎侧弯或后伸可加重头晕，双下肢腱反射亢进，脊髓造影有部分梗阻。最可能的诊断是A．椎动脉型颈椎病B．体位性眩晕C．神经根型颈椎病D．梅尼埃征

单选题某青年在运动过程中突发左腰部绞痛、血尿，最大可能是

单选题A．甲状腺乳头状癌 B．甲状腺滤泡状癌C．甲状腺髓样癌 D．甲状腺未分化癌

单选题生殖细胞向胚外组织分化而形成的肿瘤是

单选题肺动脉口狭窄临床表现主要是哪一项：

单选题手部开放性损伤后，早期清创缝合不应超过的时间是A．4小时B．8小时C．12小时D．16小时

单选题骨折急救处理中，哪项错误( )(1995年)