20xx年初級(jí)通信工程師(上午)試題與答案-資料下載頁(yè)
2025-08-10 05:49本頁(yè)面
【正文】 語(yǔ)言 ● 計(jì)算機(jī)軟件是由系統(tǒng)軟件和應(yīng)用軟件構(gòu)成的， （89） 是系統(tǒng)軟件。（89） ● （90） 主要對(duì)處理機(jī)進(jìn)行管理，是操作系統(tǒng)的核心功能。（90） ● 在通信專業(yè)中，縮寫(xiě)詞TCM的英文全稱是 （91） ，縮寫(xiě)詞GSM的英文全稱是 （92） 。（91） Coded Modulation Control Mode Channel Measurement Coded Modulation（92） Shift Modulation System for Mobile munications Synchronous Mobile systems Spreading Modulation● The Hertz is used as a unit to measure （93） .（93） loss ● Inside the Internet, the data is routed to the puter via network devices called （94） .（94） ● Early cellular systems were （95） .They operated by directly modulating a voicewaveform on a carrier and transmitting cell phones in the same cell were assigned different carrier frequencies, and adjacent cells used different set of （96） .（95） （96） slots ● A satellite system is posed basically （97） a satellite in space and many earth stations on the ground which links to it.（97） ● 閱讀下面的短文，回答98~100題 【Until the popular adoption of mobile phones in 1990s, pagers fulfilled the role of mon personal and mobile munications. Today, pagers mainly support the “critical messaging” markets. They are the ideal solution for very quick, very reliable personal or group messaging. Unlike many othermobile munications networks, they continue to work in times of emergency or disaster as they do not suffer from network overload as has been proven many times. For this reason, they are still very popular with emergency service personal, medical personal, and information technology support staff.】 Since 1990, pagers have started to bee （98） than before. Pagers are the ideal solution for （99） .It has been proven many times that （100） .（98）A. more popular B. less popular C. more reliableD. less reliable（99） service browsing image processing（100） can reduce network overload do not suffer from network overload can reduce network overload do not suffer from network overloa
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