单项选择题
IP地址172.16.34.5/20的网络地址是()
A.172.16.0.0
B.172.32.0.0
C.172.16.32.0
D.172.16.25.0
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单项选择题
A.172.16.0.0
B.172.32.0.0
C.172.16.32.0
D.172.16.25.0
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