传动和提升用钢丝绳出现下列情况之一的（），应报废。 ["整根绳股断裂；","出现笼形畸变时；","局部直径严重增大或减小时；","局部弯折、扭结或被压扁时。"]
Two Cisco routers are connected to each other and are enabled CDP. Serial line is up，protocol is also up but cdp neighbor not working. What layer of the OSI model does the problem most likely exist？
燃烧形成的充要条件包括？
在涉外票据的法律适用上，适用行为地法律的票据行为有（） 。 ["背书","承兑","付款","保证行为"]
用侧滑仪检验车轮的侧滑量其值不得超过（）m/km。 ["A、5 ","B、10 ","C、15 ","D、20"]
伦勃朗的艺术特点？
