单项选择题
A.Router(config)#ip dhcp pool test <br>Router(config)#ip dhcp excluded-address 202.112.7.2-10 <br>Router(dhcp-config)#network 202.112.7.0 255.255.255.0
B.Router(config)#ip dhcp excluded-address 202.112.7.2-10 <br>Router(config)#ip dhcp pool test <br>Router(dhcp-config)#network 202.112.7.0/24
C.Router(config)#ip dhcp excluded-address 202.112.7.2-10 <br>Router(config)#ip dhcp pool test <br>Router(dhcp-config)#network 202.112.7.0 0.0.0.255
D.Router(config)#ip dhcp excluded-address 202.112.7.2-10 <br>Router(config)#ip dhcp pool test <br>Router(dhcp-config)#network 202.112.7.0 255.255.255.0