药物的效价强度是指() ["引起等效反应的相对剂量或浓度","引起50%动物阳性反应的剂量","引起药理效应的最小剂量","治疗量的最大极限","药物的最大效应"]
基尼指数
下列关于HIV无症状感染期的描述,正确的是() ["无传染性","常出现口腔毛状白斑","抗-HIV阴性","持续时间较长,可达数年或更长","血中一般检测不出HIV"]
既治疗急危重症,又治疗闪挫腰痛的腧穴是()。 ["印堂","关元","大椎","水沟","百会"]
肺炎链球菌肺炎的热型是() ["稽留热","弛张热","间歇热","回归热","波状热"]
晶体结构