131.87.30/28子网中最小的可用IP地址是（）A.61.131.87.17B.61.131.87.15C.61.131.87.1D.61.131.1.1
131.87.30/28子网中最小的可用IP地址是（）
A.61.131.87.17
B.61.131.87.15
C.61.131.87.1
D.61.131.1.1
相关考题：
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