首页
登录
职称英语
Once regarded as an expensive status 【B1】______, the cellular telephone has
Once regarded as an expensive status 【B1】______, the cellular telephone has
游客
2023-08-01
42
管理
问题
Once regarded as an expensive status 【B1】______, the cellular telephone has become a popular crime-fighting and safety tool for drivers. Every month, people with car phones make 600,000 calls to 【B2】______ numbers, reporting not only drunken driving but also such crimes as drug 【B3】______, burglaries and car jackings. "They are our eyes and ears," says Dennis Martin, 【B4】______ director of the National Association of Chiefs of Police.
Some car phones are installed 【B5】______, drawing power from the vehicle’s battery. Others are 【B6】______, powered by the car’s cigarette lighter or by an 【B7】______, rechargeable battery. But all 【B8】______ the same way. Dialing a cellular phone sends a radio signal to the telephone company tower covering that geographic area, or cell site. When a driver begins moving out of one cell site, a telephone company computer senses the weakening signal and automatically passes the call to the next tower. 【B9】____________. When car phones first appeared, some police officials worried that 【B10】____________. In fact, 【B11】____________. And police are now cooperating with initiatives involving cellular phones.
Once regarded as an expensive status symbol, the cellular telephone has become a popular crime-fighting and safety tool for drivers. Every month, people with car phones make 600,000 calls to emergency numbers, reporting not only drunken driving but also such crimes as drug deals, burglaries and car jackings. "They are our eyes and ears," says Dennis Martin, executive director of the National Association of Chiefs of Police.
Some car phones are installed permanently, drawing power from the vehicle’s battery. Others are portable, powered by the car’s cigarette lighter or by an internal, rechargeable battery. But all operate the same way. Dialing a cellular phone sends a radio signal to the telephone company tower covering that geographic area, or cell site. When a driver begins moving out of one cell site, a telephone company computer senses the weakening signal and automatically passes the call to the next tower. With about 13,000 towers in operation, 97 percent of the population lies within range of cellular service. When car phones first appeared, some police officials worried that drivers using them would not pay attention to the road and would get in accidents. In fact, the phones are making the roads safer, particularly against the danger of drunken drivers. And police are now cooperating with initiatives involving cellular phones.
选项
答案
symbol
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2889390.html
相关试题推荐
[originaltext]Fromopensandalstospikedheelsorwrappedinexpensivelea
[originaltext]Fromopensandalstospikedheelsorwrappedinexpensivelea
[originaltext]W:Charles,amongotherthings,you’reregardedasoneofAmerica
[originaltext]W:Charles,amongotherthings,you’reregardedasoneofAmerica
Hancock’sstudyfocuseson______.[br]AccordingtoHancock,thetelephoneisa
[audioFiles]audio_eufm_j57_001(20082)[/audioFiles]A、It’stooexpensive.B、Itis
【B1】[br]【B7】A、connectsB、operatesC、drivesD、manufacturesB此处需要一个可同时与telephone
Whywasthedeathregardedsilent?[br]Thepassageismainlyabout______.A、the
Whywasthedeathregardedsilent?[br]Todegasthelakeinthethirdparagraph
Whywasthedeathregardedsilent?[br]WhatcausedthedisasteratLakeNyos?A、
随机试题
PreservingthePastToday,manyoldbuildingsarebe
ManyfamiliesintheUnitedStateshavealargerincomenowthaneverbefore
以下关于滑坡施工应符合的规定,描述正确的是()。A.应编制滑坡段的专项施工
咳嗽诊断
蛋白质的等电点是( )。A.能使蛋白质变性沉淀时溶液的pH值 B.蛋白质分子
全面建设小康社会的重要任务是()A:发展经济 B:提高居住质量 C:实行宏观
能培养儿童勇敢、坚毅、合作等个性品质的游戏是( )A.建筑性游戏 B.表演游
提出需要层次理沦的心理学家是( )A、弗洛姆 B、罗杰斯 C、
下列有关商品流通企业在采购商品过程中发生的运输费、装卸费、保险费以及其他可归属于
某建筑公司向当地建设行政主管部门申请施工资质增项未获得通过,建筑公司对此结果不服
最新回复
(
0
)