目前常用的良性前列腺增生手术方式() ["TUIP(经尿道前列腺切割)","TUVP或TUVRP(经尿道前列腺气化)","耻骨上经膀胱前列腺摘除","耻骨后前列腺摘除","TURP(经尿道前列腺切除)","钬激光前列腺切除"]
试述液压起复设备的定期检查?
PLC所有指示灯均不亮时,可能引起该故障的部件包括() ["A.电源","B.保险","C.电池","D.服务器"]
在管道顺序输送的过程中,全线没有任何操作泵站运行正常,中间下载站的进站压力突然上升,原因为() ["A.上游截断阀意外关闭","B.下游截断阀意外关闭","C.站场下游出现打孔盗油","D.罐区阀门故障突然关闭"]
与类风湿关节炎的发病有关的是() ["变形杆菌","EB病毒","HLA-DR4","HLA-B27","雌/雄激素失调"]
试述链条报废标准?