（）为主变流器控制提供同步信号、为原边电压的检测和电度表的计量提供电压输入信号的电器。 ["TV1","TA1","TA2"]
钩端螺旋体病的传染源是（） ["鸡鸭","野鼠","鸟类","蚊子","跳蚤"]
下列哪种疾病β-HCG检测的结果不为阴性（） ["子宫肌瘤","输卵管妊娠","卵巢囊肿发生蒂扭转","急性输卵管炎","急性阑尾炎"]
对眼猪囊尾蚴病患者首选的治疗是（） ["氯喹","吡喹酮","抗生素","伯氨喹","手术"]
HXD3型电力机车主变压器的六个（）V牵引绕组分别用于两套主变流器的供电。 ["1450","1960","3200"]
管理费
