单选题A．圆韧带内的小凹动脉B．股骨干滋养动脉升支C．旋股内、外侧动脉的分支D．骺外侧动脉

单选题麻醉中发现CO2蓄积，如排出速度过快，最可能出现的临床表现是A．血压下降，呼吸暂停B．血压下降，呼吸变快C．血压上升，呼吸变快D．血压上升，呼吸变慢

单选题患儿10岁，胫骨中上段慢性骨髓炎，一般情况好，体温不高，局部有流脓窦道，X线片有4cm长整段死骨，周围有不连续包壳。当前的主要治疗是A．手术摘除死骨，肌瓣填塞消灭死腔B．手术摘除死，填入庆大霉素链，三周后取出，松质骨植入C．手术摘除死骨，植入细塑料管，每口经管滴入抗生素D．患肢长腿石膏管型固定，开窗换药E．局部换药，保持引流通畅

单选题治疗尿路感染，为了加强和巩固疗效，下面哪项是恰当的

单选题It is a wise father that knows his own child, but today a man can boost his paternal (fatherly) wisdom— or at least confirm that he's the kid's dad. All he needs to do is shell out $30 for paternity testing kit (PTK) at his local drugstore—and another $120 to get the results. More than 60,000 people have purchased the PTKs since they first became available without prescriptions last year, according to Doug Fogg, chief operating officer of Identigene, which makes the over-the-counter kits. More than two dozen companies sell DNA tests directly to the public, ranging in price from a few hundred dollars to more than $ 2,500. Among the most popular: paternity and kinship testing, which adopted children can use to find their biological relatives and families can use to track down kids put up for adoption. DNA testing is also the latest rage among passionate genealogists—and supports businesses that offer to search for a family's geographic roots. Most tests require collecting cells by swabbing saliva in the mouth and sending it to the company for testing. All tests require a potential candidate with whom to compare DNA. But some observers are skeptical. "There is a kind of false precision being hawked by people claiming they are doing ancestry testing," says Troy Duster, a New York University sociologist. He notes that each individual has many ancestors—numbering in the hundreds just a few centuries back. Yet most ancestry testing only considers a single lineage, either the Y chromosome inherited through men in a father's line or mitochondrial DNA, which is passed down only from mothers. This DNA can reveal genetic information about only one or two ancestors, even though, for example, just three generations back people also have six other great-grandparents or, four generations back, 14 other great-great-grandparents. Critics also argue that commercial genetic testing is only as good as the reference collections to which a sample is compared. Databases used by some companies don't rely on data collected systematically but rather lump together information from different research projects. This means that a DNA database may have a lot of data from some regions and not others, so a person's test results may differ depending on the company that processes the results. In addition, the computer programs a company uses to estimate relationships may be patented and not subject to peer review or outside evaluation.

单选题骨与关节结核发病率最高的部位

单选题女，59岁。右下腹隐痛，伴腹胀、腹泻3个月余，诊断为右侧结肠癌。手术探查发现：距回盲瓣5cm处升结肠腔内－3cm×4cm质硬肿块，呈结节状，累及浆膜层，未见壁腹膜受累和腹腔内淋巴结转移灶，行右侧结肠根治术，术后病理证实为腺癌，癌肿穿透肠壁，切除相应系膜内淋巴结转移0／19。按照我国补充的Dukes分期标准，初步判定为

单选题 引起细菌性肝脓肿不恰当的是 A、胆管结石并发胆管炎时，细菌逆行至肝，引起胆源性肝脓肿 B、腹腔外的急性感染，细菌经血循到达肝脏 C、消化道内的急性感染，细菌入进门静脉到达肝脏 D、腹内脏器急性感染，细菌进入门静脉到达肝脏 E、闭合性肝裂伤，细菌直接进入创口引起感染

单选题急性肾盂肾炎的合并证不包括

单选题男，44岁，上腹部被汽车撞伤3小时，面色苍白，四肢厥冷，脉率130次／分，血压70／50mmHg，全腹轻度压痛、反跳痛及肌紧张，应首先考虑是

单选题男，32岁，便秘2年，3日前排便用力后肛门剧痛，近2日大便时和排便后肛门疼痛加重，粪便于结，且其表面及便纸上附有鲜血，其诊断可能为

单选题大面积烧伤24小时内的病人，首选的主要治疗措施是A．处理创而B．镇静止痛C．液体复苏D．控制感染E．补充营养，增强免疫

单选题关于急性血源性骨髓炎的治疗，下列哪项是错误的A．立即开始联合应用足量广谱抗生素B．抗生素治疗48～72小时后，局部症状仍不能控制，应手术治疗C．手术行软组织切开引流术D．少量多次输血，增加病人的抵抗力E．患肢可用皮牵引或石膏托固定

单选题肌酐清除率与下列哪项无关( )(1994年)

单选题男，31岁。5日前因阑尾炎穿孔腹膜炎做过手术。3日前出现腹痛、腹胀，伴呕吐、肛门停止排气排便，经检查诊断为肠梗阻，最重要的是判断梗阻

单选题呼吸深快，反应迟钝，皮肤苍白，脉搏140次／分，血压50／20mmHg，无尿

单选题女，42岁。自觉上腹部不适，恶心1天，2小时前突然呕出大量鲜血，心悸，出汗。查体：神清，面色苍白，肝掌，心率110次／分，血压80／60mmHg，肝、脾未及。实验室检查：血红蛋白80g／L，白细胞4 x 10 9 ／L，血小板70 x 10 9 ／L，总胆红素34.2μmol／／L。首先考虑的诊断是

单选题腹膜炎病人，经扩容治疗后血压80/60mmHg，中心静脉压5cmH2O，尿量20ml/h，应考虑A．急性肾功能衰竭B．呼吸困难综合征C．低血容量性休克D．急性心力衰竭E．感染未控制

单选题踝部骨折脱位中，错误的是