单项选择题
A.segment 10.123.1.010.123.1.255mask 255.255.255.0cpulocation 2/1
B.segment 10.123.1.110.123.1.254mask 255.255.255.0cpulocation 2/1
C.segment 10.123.1.110.123.1.255mask 255.255.255.0cpulocation 2/1
D.segment 10.123.1.210.123.1.255mask 255.255.255.0cpulocation 2/1