Which statement best describes what is depicted in the show command output？（） IGMP snooping is not active for VLAN 120 because the IGMP feature has not been enabled on the switch with the feature igmp command.。 The IGMP snooping querier for VLAN 120 is not in a running state because the Loopback interface configured with 1.1.1.1/32 is currently in a down state.。 IGMP snooping has been disabled on the VLAN 120 SVI.。 IGMP snooping has been disabled for VLAN 120 in VLAN configuration mode.。 IGMP snooping is not active for VLAN 120 because VLAN 120 does not exist in the VLAN database.。
（）是最早开始ITS研究的国家。 德国。 日本。 英国。 美国。
仪表仪容在人际交往的最初阶段并不是重要的，语言才最重要。
污染物的转化形式
What keywords do you need to the access-list to provide to the logging message like source address and source mac address？（） Log。 Log-input。 Log-output。 Logging。
课程与教学内容的选择不受以下哪一种因素的制约？（）
