2. 职称英语
  3. The main difference between cordless phones and cellphones is that cordless phon

The main difference between cordless phones and cellphones is that cordless phon

游客2023-07-18  44
问题 The main difference between cordless phones and cellphones is that cordless phones can only operate in a limited range. [br] Although most nations around the world have agreed upon GSM data transmission protocol for cellphones, the US has avoided official ______.
选项
答案 standardization
解析 Although most nations around the world have agreed upon GSM data transmission protocol for cellphones，the US has avoided official ______.解：词汇线索为专有名词GSM data transmission protocol，定位后找到文章倒数第二句，则答案应该是 avoid的宾语，即standardization。
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