Products which are made from dirts and are ________high temperatures are known as ceramics.

A．tempered in

B．subjected to

C．exposed to

D．baked in

接入层交换机Switch1的端口24为trunk口，其余各口属于vlan11，请解释下列命令并完成交换机的配置。
Switch1#config terminal
Switch1(config)#interface f0/24 (进入端口24配置模式)
Switch1(config-if)#switchport mode trunk (1)
Switch1 (config-if)#switchport trunk encapsulation dotlq (2)
Switch1 (config-if)#switchport trunk allowed all(允许所有VLAN从该端口交换数据)
Switch1 (config-if)#exit
Switch1 (config)#exit
Switch1 #vlan database
Switch1 (vlan)#vlan 11 name lab01 (3)
Switch1 (vlan)#exit
Switch1#config terminal
Switch1 (config)#interface f0/9 (进入f0/9的配置模式)
Switch1 (config-if)# (4) (设置端口为接入链路模式)
Switch1 (config-if)# (5) (把f0/9分配给VLAN11)
Switch1 (config-if)#exit
Switch1 (config)#exit