首页
登录
职称英语
【B1】 [br] 【B11】 [originaltext] Once regarded as an expensive status symbol, t
【B1】 [br] 【B11】 [originaltext] Once regarded as an expensive status symbol, t
游客
2024-03-04
70
管理
问题
【B1】 [br] 【B11】
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
the phones are making the roads safer, particularly against the danger of drunken drivers.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3505660.html
相关试题推荐
[originaltext]Hello,everyone.Wewilltalkaboutthetechnologytoday.You
[originaltext]Hello,everyone.Wewilltalkaboutthetechnologytoday.You
[originaltext]Goodmorning,everyone.I’mgoingtotalkabouttheenvironme
[originaltext]Goodmorning,everyone.I’mgoingtotalkabouttheenvironme
[originaltext]Moderator:Goodevening,ladiesandgentlemen.It’smygr
[originaltext]Aswithsomanyotherthingsinlife,exercisemayworkbest
[originaltext]Aswithsomanyotherthingsinlife,exercisemayworkbest
[originaltext]Anewsystemhasbeendevelopedtomeasurethehealthofthe
[originaltext]W:Hi,Jim.Whatareyoudoing?M:Oh,hi,Linda.I’mworkingon
[originaltext]W:Hi,Jim.Whatareyoudoing?M:Oh,hi,Linda.I’mworkingon
随机试题
Whenisthemeetinghold?[br][originaltext]W:It’sabout3:30.M:Oh,no,I’
ThetraditionalChinesehospitalityrequiresfooddiversity,sothatguests
FromAccountanttoYogi:MakingaRadicalCareerChange[A]Atsomepoint,a
I’llhavetopushthecartothesideoftheroadbecausewe(fine)________ifwe
摄影时,可以人为控制运动模糊的是A.呼吸 B.心脏搏动 C.胃蠕动 D.痉
新结构、新材料的试验费,由建设单位在()中列支。A.工程建设其他费 B.
A. B. C. D.
取得《物业管理师资格证书》并申请注册的人员,应受聘于()个具有物业管理资质的企业
既可治湿温、暑湿、胸闷呕恶,湿热痞满、黄疸泻痢又可治胎动不安的药物是A.黄芩
教科书的编排形式通常采用()等几种形式。 A.铺垫式 B.直线式 C.螺旋
最新回复
(
0
)