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单项选择题You are working in a data center environment and are assigned the address range 10.188.31.0/23.You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.Which IP address range meets these requirements?（）: A、10.188.31.0/27; B、10.188.31.0/26; C、10.188.31.0/29; D、10.188.31.0/28; E、10.188.31.0/25

正确答案：B
答案解析：
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