单选题形成蛋白尿的主要原因除外下列哪项

单选题 白细胞精子症常见原因是（ ） A、生殖腺结核 B、生殖腺肿瘤 C、生殖系统感染 D、生殖管道阻塞 E、生殖腺发育不良

单选题A．激活弹力纤维酶B．激活磷脂酶AC．激活胰舒血管素D．激活胰蛋白酶E．激活血浆激肽

单选题22岁女性。肾病综合征患者，用泼尼松和环磷酰胺治疗半年，其问发生肺炎2次，关于该患者反复出现肺炎的原因下列哪种说法是错误的

单选题 下列哪项不是胎盘孕酮的功能（ ） A、促进子宫内膜基质细胞蜕膜化 B、促进月经黄体转变为妊娠黄体 C、抑制雌激素对子宫平滑肌的收缩作用 D、抑制缩宫素对子宫平滑肌的收缩作用 E、抑制一些与免疫排斥相关的免疫应答

单选题 死精子症肾阳虚型首选（ ） A、生精种玉汤 B、五子衍宗丸 C、金匮肾气丸 D、和滋阴中和丸 E、大补阴丸

单选题A．雌激素的作用 B．雌激素和生长激素的作用C．雌激素、孕激素和催乳素的作用 D．催乳素和催产素的作用

单选题A．瘢痕性幽门梗阻B．胃十二指肠溃疡大出血C．胃十二指肠溃疡急性穿孔D．穿透性十二指肠溃疡

单选题A．粘连性肠梗阻B．肠套叠C．两者都有关D．两者都无 (1990年)

单选题A．骨擦音或骨擦感 B．血压降低 C．持续高热 D．功能障碍

单选题对诊断困难的急性化脓性腹膜炎病例，应做哪项检查以协助明确诊断( )(1991年)

单选题 患者男性，30岁上腹痛伴返酸恶心一周，近一天来上腹痛加剧伴全腹痛.当地医院诊为十二指肠球部溃疡穿孔，为进一步明确诊断，以下哪项是不必要的? A、询问病史 B、仔细检查 C、胸腹部X线透视 D、上腹部CT E、白细胞计数和分类

单选题确诊膝关节滑膜结核时，以下哪项最可靠A．低热、盗汗、食欲差B．膝关节肿胀、疼痛、功能受限C．血沉增快D．X线检查膝关节骨质疏松E．滑膜病理检查

单选题有关先天性肾盂输尿管连接部梗阻的原因，下列哪项是不恰当的

单选题患者，男性，56岁，间歇全程肉眼血尿1年多。血尿伴不规则小血块及轻度膀胱刺激症状，不发烧，体重约下降3～4Kg，B超提示膀胱左侧壁上有一5cm大小广基肿瘤，侵犯膀胱壁几乎达全层，左输尿管下段扩张，提示膀胱癌。入院检查：体温正常，脉搏68次／分，血压24／12kPA最适宜的治疗方法是

单选题男，21岁，急性化脓性阑尾炎穿孔导致弥漫性腹膜炎，患者取半卧位的原因不包括

单选题That boys and girls—and men and women—are programmed by evolution to behave differently from one another is now widely accepted. But which of the differences between the sexes are "biological", in the sense that they have been honed by evolution, and which are "cultural" or "environmental" and might more easily be altered by changed circumstances, is still fiercely debated. The sensitivity of the question was shown last year by an uproar at Harvard University. Larry Summers, then Harvard's president, caused a storm when he suggested that innate ability could be an important reason why there were so few women in the top positions in mathematics, engineering and the physical sciences. Even as a proposition for discussion, this is unacceptable to some. But biological explanations of human behavior are making a comeback. The success of neo-Darwinism has provided an intellectual foundation for discussion about why some differences between the sexes might be innate. And new scanning techniques have enabled researchers to examine the brain's interior while it is working, showing that male and female brains do, at one level, operate differently. The results, however, do not always support past clichés about what the differences in question actually are. Another behavioral difference that has borne a huge amount of scrutiny is in mathematics, particularly since Dr Summers'comments. The problem with trying to argue that the male tendency to systemize might lead to greater mathematical ability is that, in fact, girls and boys are equally good at maths prior to teenage years. Until recently, it was believed that males outperformed females in mathematics at all ages. Today, that picture has changed, and it appears that males and females of any age are equally good at computation and at understanding mathematical concepts. However, after their mid-teens, men are better at problem solving than women are. The question raised by Dr Summers does not get to the heart of the matter. Over the past 50 years, women have made huge progress into academia and within it. Slowly, they have worked their way into the higher echelons of discipline after discipline. But some parts of the ivory tower have proved harder to occupy than others. The question remains, to what degree is the absence of women in science, mathematics and engineering caused by innate, immutable ability? Innate it may well be. That does not mean it is immutable. A variety of abilities are amenable to training in both sexes. And such training works. Biology may predispose, but it is not necessarily destiny.

单选题区别原发性与继发性精索静脉曲张，主要依据

单选题鉴别尿路感染与尿道综合征的最根本点是A．尿白细胞的多少B．尿红细胞的多少C．尿白细胞管型的有无D．真性细菌尿的有无E．尿路刺激症状的有无

单选题关于胆管癌的描述，下列哪项是错误的