2. 职称英语
  3. People prefer IP phone calls to ordinary ones because the former is ______. [br]

People prefer IP phone calls to ordinary ones because the former is ______. [br]

游客2023-09-24  47
问题 People prefer IP phone calls to ordinary ones because the former is ______. [br] The main purpose for the author to write this passage is ______.
选项 A、to introduce a new technology called VoIP
B、to inform that IP phone calls are sometimes quite awful
C、to tell us that IP calls are dependent on personal computers
D、to compare the IP calls with the traditional phone calls
答案 A
解析
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