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

游客2024-01-02  16

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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