液力减振器按结构形式不同分为（）和摇臂式。 ["箱式","卧式","筒式","立式"]
《铁路旅客运输规程》线路中断，旅客在发站或中途站停止旅行，而托运的行李已运至到站，要求将行李回发站或中途站，运费不补不退。
8086/8088在基址加变址的寻址方式中，基址、变址寄存器分别为（）。 ["AX或CX、BX或CX","BX或BP、SI或DI","Sl或BX、DX或SI","DX或DI、CX或SI"]
电气化铁路站场平面布置要求，软横跨所跨的线路数一般不应超过（）股。 ["5","6","8","10"]
Which three of these statements about penultimate hop popping are true？（） ["It is used only for directly connected subnets or aggregate routes.","It can only be used with LDP.","It is only used when two or more labels are stacked.","It enables the Edge LSR to request a label pop operation from its upstream neighbors.","It is requested through TDP using a special label value that is also called the implicit-null value.","It is requested through LDP using a special label value that is also called the implicit-null value."]
体育素质
