单选题下列哪项不符合原发性甲亢的诊断标准
单选题A.PGAB.5-羟色胺C.TNFD.氧自由基E.ADH
单选题雌激素的生理功能不包括下列哪项
单选题脂肪移植术后多长时间容易发生脂肪液化
单选题某男性患者,25岁,骑跨伤后尿道口少量滴血,但排尿顺利,3周后,患者出现排尿困难,此时应采取
单选题关于慢性胰腺炎的病理变化下列哪项是正确的
单选题下列选项中,不属于系膜增生性肾小球肾炎病理特点的是
单选题下列哪项不符合高分解代谢性急性肾衰竭
单选题A.卵泡发育B.抑制卵母细胞成熟C.排卵D.子宫内膜发生增生期变化
单选题肝外胆管结石的特点是
单选题输血时发生的最常见而严重的传染病是
单选题B型超声扫描诊断胆道疾病,方法上不足之处为
单选题In the idealized version of how science is done, facts about the world are waiting to be observed and collected by objective researchers who use the scientific method to can'y out their work. But in the everyday practice of science, discovery frequently follows an ambiguous and complicated route. We aim to be objective, but we cannot escape the context of our unique life experience. Prior knowledge and interest influence what we experience, what we think our experiences mean, and the subsequent actions we take. Opportunities for misinterpretation, error, and self-deception abound. Consequently, discovery claims should be thought of as protoscience. Similar to newly staked mining claims, they are lull of potential. But it takes collective scrutiny and acceptance to transform a discovery claim into a mature discovery. This is the credibility process, through which the individual researcher's me, here, now becomes the community's anyone, anywhere, anytime. Objective knowledge is the goal, not the starting point. Once a discovery claim becomes public, the discoverer receives intellectual credit. But, unlike with mining claims, the community takes control of what happens next. Within the complex social structure of the scientific community, researchers make discoveries; editors and reviewers act as gatekeepers by controlling the publication process; other scientists use the new finding to suit their own purposes; and finally, the public (including other scientists) receives the new discovery and possibly accompanying technology. As a discovery claim works it way through the community, the interaction and confrontation between shared and competing beliefs about the science and the technology involved transforms an individual's discovery claim into the community's credible discovery. Two paradoxes exist throughout this credibility process. First, scientific work tends to focus on some aspect of prevailing Knowledge that is viewed as incomplete or incorrect. Little reward accompanies duplication and confirmation of what is already known and believed. The goal is new-search, not re-search. Not surprisingly, newly published discovery claims and credible discoveries that appear to be important and convincing will always be open to challenge and potential modification or refutation by future researchers. Second, novelty itself frequently provokes disbelief. Nobel Laureate and physiologist Albert Azent-Gy6rgyi once described discovery as "seeing what everybody has seen and thinking what nobody has thought." But thinking what nobody else has thought and telling others what they have missed may not change their views. Sometimes years are required for truly novel discovery claims to be accepted and appreciated. In the end, credibility "happens" to a discovery claim—a process that corresponds to what philosopher Annette Baier has described as the commons of the mind. "We reason together, challenge, revise, and complete each other's reasoning and each other's conceptions of reason./
单选题肋骨骨折时,最能说明肯定有肺或支气管损伤的是
单选题溢出性蛋白尿多见于
单选题女,45岁,间歇性右上腹痛伴皮肤巩膜黄染,发热10天,加重3天入院。治疗期间突然出现寒战、高热,体温39.4℃,神志淡漠,面色苍白,皮肤厥冷,手足冰冷,脉率125次/分,BP70/45mmHg。
单选题A.肱骨外科颈骨折B.肱骨干中上1/3骨折C.肱骨干中下1/3骨折D.伸直型肱骨髁上骨折
单选题直肠肛管周围脓肿中最常见的是
单选题
关于初级性索描述,不正确的是( )
A、生殖腺嵴内的不规则细胞索 B、在胚胎第5~6周时含原始生殖细胞
C、来源于体腔上皮 D、在男性分化为生精小管
E、在女性分化为原始卵泡
单选题女,68岁,间歇性右上腹疼痛10年,疼痛向右肩背部放射,近1周再发右上腹痛,伴畏寒、发热。体格检查:体温38.6℃,脉搏112次/分,血压84/45mmHg,右上腹可扪及10cm×8cm包块,张力高,局部压痛、反跳痛明显,腹肌紧张。目前应如何治疗
