单项选择题
IP地址192.168.129.10掩码255.255.128.0的网段号为（）
A.192.168.129.0
B.192.168.0.0
C.192.168.128.0
D.192.168.129.1
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单项选择题
A.192.168.129.0
B.192.168.0.0
C.192.168.128.0
D.192.168.129.1
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