杂物电梯操纵轿厢安全钳装置的限速器的动作应发生在速度不小于额定速度的()
参考答案:对
10BaseT is an Ethernet LAN term meaning a maximum transfer rate of 10Mbps that uses baseband signaling and twisted pair cabling. A 10BaseT Ethernet LAN has a ______ topology.
A.star
B.ring
C.bus
D.none of the above
男性,74岁,右侧腹股沟区可复性肿块8年。查体:病人直立时,在腹股沟内侧端、耻骨结节上外方有一4cmX4cm半球形肿物,未进入阴囊,平卧后自行消失。该病人最有效的治疗方法是
A.用棉线束带或绷带压迫内环口
B.禁烟、控制呼吸道感染
C.注射硬化剂
D.疝修补术
E.疝嚢高位结扎术