下列关于土挤压顶管说法中错误的是（） ["挤压土项管分两种：不出土挤压顶管和出土挤压顶管","土挤压顶管适用于大直径管子在松散土层中不开槽敷设","不出土顶管是利用千斤顶、卷扬帆等设备将管子直接顶进土层内，管周围土被挤密","不出土顶管由于管径较小，有时管子可以贴障碍物边滑过，因此误差较小"]
In UCSM, where are Call Home conditions for monitoring configured?（） ["Call Home Service Profiles","Call Home Policies","Call Home Events","Call Home Tra"]
A network administrator is viewing the control plane traffic flowing through their network in real-time. What built-in feature enabled this ability?（） ["call home","wireshark","ethanalyzer","NX-OS"]
台湾居民编造情况，提供假证明，获取旅行证件，除依照规定可以对其进行处罚外，并可以在处罚执行完毕（）内不受理其出境、入境申请。 ["1个月","3个月","6个月","12个月"]
Which two factors determine the recommended maximum number of virtual interfaces on a Cisco UCSsystem?（） ["the number of computer blades in the system","the number of interfaces sharing the uplinks","the driver version on the OS running on the computer blade","the number of uplinks between I\/O Module and Fabric Interconnect"]
简述有效合同的法律效力。
