尖锐湿疣又名:() ["精浊","淋证","软疣","性病疣","霉疮"]
梅毒治疗主要以:() ["中药为主","西药为主","外治为主","理疗为主","手术为主"]
梅毒肝经湿热证宜用:() ["龙胆泻肝汤加土茯苓、丹皮、赤芍","八正散","黄连解毒汤","三妙散","知柏地黄汤"]
二期梅毒的皮疹特点是:() ["斑疹","丘疹","斑丘疹","多形态","脓疱疹"]
某电力用户装有250kVA变压器一台,月用电量85000kWh,力率按0.85计算,试计算该用户变压器利用率η是多少?
某农场由于天气干旱少雨,需要临时安装一台30kW电动机抽水抗旱,由于条件所限,未安装计费电能表。该农场与供电企业约定每天用电6h,期限90天,并预交电费5000元,60天后,拆除临时用电设备中止用电。试求供电企业应退该农场电费多少元?[电度电费单价0.20元/(kW·h)。]