国家对其自然资源享有永久主权的原则是指（） 外国投资者可以自由从事或与开发自然资源的投资项目。 外国投资者只有经过特别批准方可从事或参与自然资源的投资项目。 一国绝对禁止外国投资者从事或参与开发其自然资源的投资项目。 开发自然资源是国家专属的权利。
Which statements about 802.1Q trunking in Secure Network Foundation Design Guide for Single Site Deployments are correct？（） The Cisco Control VLAN carries only Layer 2 control traffic。 802.1Q trunking is used between the access switch and the router。 There is no 802.1Q trunking used in these designs。 When 802.1Q trunks are configured， they are also called Native VLANs。 Trunking Ensures that traffic from only one VLAN is carried on that trunk。
How does system management differ between Cisco and Cisco Small Business products?（） Cisco Small Business products are supported by intuitive GUIs.。 Cisco products are supported by multiple manageability options.。 Cisco Small Business products offer multiple manageability interfaces.。 Cisco products offer individual device management.。
氐羌
For which WMM queue is U-APSD most beneficial?（） on any of the queues。 AC_VO。 AC_VI。 the strict priority queue。
脑室引流袋入口平面应高于外耳道：（）
