How did mobile radio systems find its business competitiveness? SMR systems gain an edge over other services mostly by virtue o

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问题 How did mobile radio systems find its business competitiveness?
SMR systems gain an edge over other services mostly by virtue of

选项 A、its prohibitive retail prices.
B、its operational convenience.
C、its wider coverage areas.
D、its small storage capacity.

答案C

解析

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考研英语一

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