单选题下列CT影像中,最支持胰腺癌诊断的是A.胰周及腹腔渗出,胰腺实质内有不规则低密度区,强化后低密度区增强不明显B.胰头有3cm×4cm不均匀低密度区,强化后有不均匀增强C.胰头部增大,密度与其他部位胰腺组织密度一致,胰周界限模糊D.胰头均匀低密度区,CT值10HU,不被强化,胰体尾萎缩,胰管扩张E.胆管扩张明显,胆总管下端可见2cm×1cm的极强密度区
单选题男,60岁,进行性吞咽困难伴消瘦3个月,现在仅能进食半流质,诊断首选是
单选题绝大多数能治愈的肾炎是A.急性弥漫性毛细血管内增生性肾小球肾炎B.膜性增生性肾小球肾炎C.新月体性肾小球肾炎D.膜性肾小球肾炎E.慢性肾盂肾炎
单选题甲状腺腺瘤的治疗原则是
单选题A.骨质破坏、死骨形成B.窦道形成C.既有骨质破坏、死骨形成,又有新生骨D.病理性骨折
单选题乳腺髓样癌的特点是
单选题肋骨骨折的急救,下述哪种方法较合适( )
单选题决定大隐静脉曲张患者能否手术治疗最主要的一项检查是
单选题The past few years have been busy ones for human-rights organisations. In prosecuting the so-called war on terror, many governments in Western countries where freedoms seemed secure have been tempted to nibble away at them, while doughty campaigners such as Amnesty International (国际特殊组织) also exist for defence. Yet Amnesty no longer makes the splash it used to in the rich world. The organisation is as vocal as it ever was. But some years ago it decided to dilute a traditional focus on political rights by mixing in a new category called social and economic rights. You might suppose that the more of rights you campaign for the better. Why not add pressing social and economic concerns to stuffy old political rights such as free speech and free elections? What use is a vote if you are starving? Are not access to jobs, housing, health care and food basic rights too? No: few rights are truly universal, and letting them multiply weakens them. Food, jobs and housing are certainly necessities, but there's no use to call them "rights". When a government looks someone up without a fair trial, the victim, perpetrator and remedy are pretty clear. This clarity seldom applies to social and economic "rights". Who should be educated in which subjects for how long at what cost in taxpayers' money is a political question best settled at the ballot box (投票箱). And no economic system known to man guarantees a proper job for everyone all the time. It is hardly an accident that the countries keenest to use the language of social and economic rights tend to be those that show least respect for rights of the traditional sort. And it could not be further from the truth. For people in the poor world, as for people everywhere, the most reliable method yet invented to ensure that governments provide people with social and economic necessities are called politics. That is why the rights that make open polities possible — free speech, due process, protection from arbitrary punishment— are so precious. Insisting on their enforcement is worth more than any number of grandiloquent but unenforceable declarations demanding jobs, education and housing for all. Many do-gooding outfits suffer from having too broad a focus and too narrow a base. Amnesty used to appeal to people of all political persuasions and none, and concentrate on a hard core of well-defined basic liberties. However, by trying in recent years to borrow moral authority from the campaigns and leaders of the past and lend it to the cause of social reform, Amnesty has succeeded only in muffling what was once its central message, at the very moment when governments in the West need to hear it again.
单选题下述哪项不是膝关节前后交叉韧带的检查项目
单选题急性骨髓炎,在骨膜下抽得少量脓液。最关键的治疗措施是
单选题小儿肠套叠粪便的特征是
单选题明显阻塞性黄疸,B超发现肝内、外胆管扩张,胆总管直径2cm,比较理想的进一步检查是
单选题硬膜外阻滞最严重的并发症是
单选题汽车司机紧急刹车,上腹部挤压存方向盘上,最可能受伤的脏器是
单选题在腹部闭合性损伤行手术治疗时,如未找到明确损伤,应进行探查的顺序
单选题A.合理有效使用抗生素 B.关节腔持续灌洗C.经关节镜灌洗 D.关节切开引流+关节腔持续灌洗
单选题A.疝囊高位结扎术B.Bassini法修补术C.Halsted法修补术D.McVay法修补术E.Ferguson法修补术 (1997年)
单选题A.小儿急性阑尾炎B.妊娠早期急性阑尾炎C.老年人急性阑尾炎D.慢性阑尾炎
单选题A.4~5日B.6~7日C.14日D.10~12日