电机启动电流为A,额定电流为B,它们之间关系是() ["A=B","A>B","A<B","A≤B"]
患者女,60岁。绝经5年,反复阴道流血3次,量中等,平时白带少许,B超示子宫相对增大,宫腔内可见实质不均回声区,形态不规则宫腔线消失。首先考虑的诊断是() ["输卵管癌","子宫内膜癌","子宫颈癌","子宫内膜炎","老年性阴道炎"]
生地黄的性味是() ["辛苦寒","苦淡寒","酸苦寒","咸苦寒","甘苦寒"]
应当标示执行标准的是() ["注射剂说明书","原料药标签","药品内标签","药品外标签"]
感染HBV后最早出现的血清学标志是() ["HBsAg","抗-HBs","HBeAg","抗-HBe","抗-HBc"]
魏氏法测定ESR对试剂和器材有什么要求?