腹腔穿刺抽出血性液体,臭气重,最可能的诊断是() ["急性水肿性胰腺炎","急性化脓性胆囊炎","腹膜后血肿","完全性绞窄性肠梗阻","宫外孕破裂"]
下列有关选择偏倚说法不正确的是() ["选择偏倚是多由于选取方法不当引起的","选择偏倚一般发生在研究对象的选取过程中","研究对象无应答造成的偏倚不属于选择偏倚","采用方便样本可能会造成选择偏倚","严格控制研究对象的排除和纳入标准可以控制选择偏倚"]
健脾丸中清热的药是() ["大黄","黄连","黄柏","黄芩","栀子"]
腮腺内有哪些结构穿行()。 ["面神经","下颌后静脉(面后静脉)","颈内动脉","颈外动脉分支","耳颞神经"]
在鉴别单纯性肠梗阻与绞窄性肠梗阻时,最有意义的化验检查项目是() ["血气分析","血红蛋白测定","血白细胞计数","尿常规检查","呕吐物隐血试验"]
换药适应证