单选题Which of the following is a valid Class A TCP/IP address?（）A10.20.210.200B99.55.44.255C127.10.52.45D172.24.168.20
单选题
Which of the following is a valid Class A TCP/IP address?（）
A
10.20.210.200
B
99.55.44.255
C
127.10.52.45
D
172.24.168.20
参考解析
解析：
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