2. 计算机
  3. When you think of the Internet，you probably think of“.com．”Just what do those。three letters at the end of a World Wide Web addre

When you think of the Internet，you probably think of“.com．”Just what do those。three letters at the end of a World Wide Web addre

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问题 When you think of the Internet，you probably think of“.com．”Just what do those。three letters at the end of a World Wide Web address mean?Every computer that hosts data on the Internet has a(71) numerical address．For example，the numerical address for the White House is 198．137．240．1 00．But since(72)people want to remember long strings of numbers，the(73)was developed.It is a critical part of the Internet‘S technical infrastructure，correlates a numerical address to a word.To(74) the White House website，you could type its numerical address into the address box of your web browser．But most people prefer to use“WWW．whitehouse．gov．”In this case，the domain name is (75)．
(73)
选项 A、DHCP
B、DNS
C、RIP
D、WINS
答案B
解析
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