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Over the years, wireless communication technologies have fully proven effect
Over the years, wireless communication technologies have fully proven effect
游客
2024-02-19
21
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问题
Over the years, wireless communication technologies have fully proven effective for data as well as voice applications. It【B1】the efficiency and productivity of workers in a【B2】of other business environments. Key wireless technologies and【B3】including wireless LANs, cell telephone and packet data networks, global tracking systems, mobile computing, wireless Internet access, and enhanced paging and dispatch systems. Wireless LAN products,【B4】wire-based networks, connect PCs, laptops, PDAs, and more to LANs but offer one important【B5】they allow you to move or "roam"【B6】while staying tied to your【B7】or the information on your wired network【B8】you can communicate with them【B9】you are, without ever losing the【B10】to the network,
Digital’s wireless LAN products are clear leaders in the marketplace. Digital【B11】the industry’s most complete portfolio(系列服务) of mobile and wireless products.【B12】such as wireless PC Cards, wireless ISA adapters and superior wireless bridge, digital cordless telephony【B13】desktop devices to communicate wirelessly with other wireless【B14】, or access network files, services, and devices on the wired network.
Wireless communication technology can also be used for【B15】time data collection in locations【B16】considered too remote, inaccessible or environmentally hostile for conventional wired monitoring systems. Mobile hosts such as notebook and palmtop computers are now widely【B17】and affordable. Today’s laptops and notebooks come loaded【B18】almost all imaginable wireless communications devices. This gives desktop PC customers a choice of wireless technology【B19】best suits their mobility and application needs.
Other markets for wireless technology include customer service, retailing, and health care.【B20】every market in the service sector of the economy is a candidate for wireless technologies and services.
选项
A、reduces
B、improves
C、disturbs
D、provokes
答案
B
解析
前面讲到wireless communication technologies have fully proven effective,所以后面应是相似的内容,即这项技术的积极作用,是effective的具体表现,故应选improve,意思是“提高了效率和生产力”。provokes是贬义,与语境不符。
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