内部化理论
斜销外抽芯机构中，应使楔紧块的角度（）斜销的角度2～3℃，开模后滑块应该有可靠的定位，防止出现滑块滑落事故。
You are the network administrator of an enterprise company that just deployed a global IP telephony environment. In order to guarantee good voice quality， you asked your provider to implement QoS on the CE routers of your MPLS network. On your LAN， you have also deployed QoS. Users， however， keep complaining about bad voice quality， and the provider does not see matches on the DSCP values that you have asked him to match upon. What is most likely the problem？（） The phones are not sending traffic with the correct DSCP value.。 The Cisco CallManager is not marking the traffic correctly.。 This is most likely a bug on the CE routers.。 Your LAN QoS is incorrectly configured.。
国防动员包括哪些内容？
重要的轴和销轴是指直接涉及到人身和设备安全的轴和销轴，如（） 游乐设施主轴、中心轴、乘坐物支撑轴、吊挂轴。 重要的传动轴、车轮轴。 升降油缸（气缸）上下销轴、乘坐物升降臂上下销轴。 肩式压杠轴、车辆连接器轴、防逆行、防倾翻装置的销轴等。
请参见图示。拓扑条目开头处的 P表示什么含义？（）
