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  3. Nobody had predicted the scale of impact of( ) communications and that it would be one of the largest businesses in the history

Nobody had predicted the scale of impact of( ) communications and that it would be one of the largest businesses in the history

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问题 Nobody had predicted the scale of impact of(  ) communications and that it would be one of the largest businesses in the history of mankind with an immense impact on all economies．
选项 A、microwave
B、satellite
C、cell
D、cellular
答案D
解析 本题考查蜂窝通信方面的基本知识。
蜂窝通信将是人类历史上规模最大的行业之一，没有人能够预测它的影-向范围，它会对所有经济体都产生巨大的影响。
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本试题收录于： 中级通信专业综合能力题库通信专业技术人员职业水平分类
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