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  3. Convergence of satellite and terrestrial telephony is certain to deepen as the t

Convergence of satellite and terrestrial telephony is certain to deepen as the t

游客2023-12-31  31
问题 Convergence of satellite and terrestrial telephony is certain to deepen as the technical hurdles of multi-standard handset development and infrastructure integration fall.
选项 A、initiatives
B、obstacles
C、warnings
D、orders
答案 B
解析 名词辨析hurdles篱笆，栏，障碍，跨栏；A．initiatives主动，积极性，优先权；B．obstacles障碍，妨害物；C．warnings警告，预告；D．orders次序，正常(工作)状态；因此B为答案。
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