下列可设置为主机IP地址的是 A. 210.29.140.0 B．210.29.140.1 C．210.29.140.255 D．210.29.140.256
答案：B
下列可设置为主机IP地址的是 A. 210.29.140.0 B．210.29.140.1 C．210.29.140.255 D．210.29.140.256
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下列可设置为主机IP地址的是 A. 210.29.140.0 B．210.29.140.1 C．210.29.140.255 D．210.29.140.256
答案：B