以下IP地址中，属于私有专用IP地址的是（）。
A．10.255.254.7
B．172.13.98.206
C．172.32.58.41
D．192.178.67.234
参考答案：A
解析：
专用IP地址是Internet管理机构预留的，任何组织使用时都不需要向Internet管理机构申请。通常，用于企事业单位内部网络的专用IP地址段主要有10.0.0.0～10.255.255.255、172.15.0.0～172.31.255.255、192.168.0.0～192.168.255.255等。
据此，选项A的“10.255.254.7”是一个A类专用IP地址。选项B的“172.13.98.206”和选项C的“172.32.58.41”都是B类公网IP地址。选项D的“192.178.67.234”是一个C类公网IP地址。
This gi rl is Li Yue. In the past, she was a happy girl. She used to every day and wanted to be a dancer. But everything in 2008. The year of 2008 was a(n) year to Li Yue. She was trapped under the stones and bricks in Wenchuan earthquake. Li Yue survived at last. , she lost one of her . Can a girl dance with one leg? Yes, but it is really difficult. Li Yue is so that she has never stopped dancing. During the opening ceremony of the Beijing 2008 Paralympic Games, she gave a ballet performance to people all over the world. For more than two years, Li Yue hasn’t changed a lot. She is a happy student in a primary school in Beijing now. Her even formed a special volunteer team “Li Yue Assistance Team” to help her move . The boys and girls in her class take turns to her wheelchair and that makes Li Yue more cheerful. “Now my priority (优先考虑的事) is studying hard. But I will continue to dance. can stop me!” Li Yue said. She is more courageous (勇敢的) than everyone has expected.
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