IP地址由4个十进制数构成，每个十进制数取值0到255，并用圆点“.”分隔。
A. 对
B. 错
Internet上的每台主机(Host)都有一个唯一的IP地址。
A. 对
B. 错
[音频]
A The band was terrible.
B The weather was cold.
C He was too sick to go.
D He went to the concert before.
[音频]
A Shedidn't go to the interview at all.
B She preferred to talk about the interviewlater.
C She didn't feel like talking about theinterview.
D She looked forward to having theinterview.
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