青霉素血清浓度达多少即有杀灭梅毒螺旋体的作用() ["A．O.O1IU/ml","B．O.03IU/ml","C．O.06IU/ml","D．0.1IU/ml"]
以下关于一期梅毒的描述错误的是() ["A．患者一般有不洁性接触史","B．主要表现为硬下疳和腹股沟淋巴结肿大","C．潜伏期2～4周","D．梅毒血清试验阴性可排除感染"]
散光
热切除(凝固性坏死)局部温度需达到或超过以下哪种温度() ["A．50℃","B．60℃","C．90℃","D．100℃","E．120℃"]
对青霉素过敏的孕妇梅毒患者宜先用下列哪种药物治疗() ["A．红霉素","B．氯霉素","C．四环素","D．链霉素"]
老视
