单项选择题
小董辨识出下列IP地址中非法的是()。
A.102.15.17.0
B.219.127.33.0
C.101.34.38.99
D.102.157.323.17
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单项选择题
A.102.15.17.0
B.219.127.33.0
C.101.34.38.99
D.102.157.323.17
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