19在Cisco Catalyst 3548以太网交换机上建立一个名为lib105的VLAN，正确的配置是 (A) Switch-3548#vlan 1 name lib 105 　　Switch-3548#exit (B) Switch-3548(vlan #vlan 1 name lib 105 　　　Switch-3548(vlan #exit (C) Switch-3548(vlan #vlan 1000 name lib 105 　　　Switch3548(vlan #exit (D) Switch-3548(vlan #vlan 1002 name lib 105 　　　Switch-3548(vlan #exit