首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Speeding off in a stolen car, the thief thinks he has got a great catch. But he is in for an unwelcome surprise. The car is fitt
Speeding off in a stolen car, the thief thinks he has got a great catch. But he is in for an unwelcome surprise. The car is fitt
admin
2010-03-26
29
问题
Speeding off in a stolen car, the thief thinks he has got a great catch. But he is in for an unwelcome surprise. The car is fitted with a remote immobiliser (锁止器), and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.
The idea goes like this. A control box fitted to the car contains a mini-cellphone, a micro- processor and memory, and a GPS (全球定位系统) satellite positioning receiver. If the car is stolen, a coded cellphone signal will tell the control centre to block the vehicle’s engine management system and prevent the engine from being restarted.
In the UK, a set of technical fixes is already making life harder for car thieves. "The pattern of vehicle crime has changed," says Martyn Randall, a security expert. He says it would only take him a few minutes to teach a person how to steal a car, using a bare minimum of tools. But only if the car is more than 10 years old.
Modern cars are far tougher to steal, as their engine management computer won’t allow them to start unless they receive a unique ID code beamed out by the ignition (点火) key. In the UK, technologies like this have helped achieve a 31% drop in vehicle-related crime since 1997.
But determined criminals are still managing to find other ways to steal cars, often by getting hold of the owner’s keys. And key theft is responsible for 40% of the thefts of vehicles fitted with a tracking system.
If the car travels 100 metres without the driver confirming their ID, the system will send a signal to an operations centre that it has been stolen. The hundred metres minimum avoids false alarms due to inaccuracies in the GPS signal.
Staff at the centre will then contact the owner to confirm that the car really is missing, and keep police informed of the vehicle’s movements via the car’s GPS unit.
Why does the tracking system set a 100-metre minimum before sending an alarm to the operations centre?
选项
A、To leave time for the operations centre to give un alarm.
B、To keep police informed of the car’s movements.
C、To give the driver time to contact the operations centre.
D、To allow for possible errors in the GPS system.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/5tk7777K
0
大学英语四级
相关试题推荐
A、RemarkingonthefilmofHarryPotter.B、Interviewingasuccessfulwomanwriter.C、Talkingabouttheirtravelingexperienceon
Thewritedoesnotliketelephoneinapublictelephonebox,because______.Whatdoes"thetruthwillout"meaninthelastse
Forthispart,youareallowed30minutestowriteacompositiononthetopicMyViewonCollegeStudents’MakingSocialPractic
Sinceancienttimes,thedestructiveeffectsofearthquakesonhumanlivesandpropertyhaveencouragedthesearchforreliable
Whatisthemainideaofthispassage?WhatistheviewofwesterncountriestowardEastAsiancountries’success?
Inthefirstparagraph,theauthorimpliesthat______areessentialinachievingsuccess.Thispassagemainlytalksabout____
A、Tolookforadifferentlifestyle.B、Toenjoythemselves.C、Foradventure.D、Foreducation.A
Thepartoftheenvironmentalmovementthatdrawsmyfirm’sattentionisthedesignofcities,buildingsandproducts.Whenwed
A、Analytic.B、Creative.C、Individual.D、Computational.C
随机试题
寻寻觅觅,冷冷清清,__________。(李清照《声声慢》)
Oneofthemostwidelydiscussedproblemsofrecentyearshascenteredaround______hascometobecalledthe"generationgap".
简述藿香的性能特点及主治病证。
患者女,52岁,左鼻涕中带血,左面部隆起,伴左磨牙松动、疼痛2个月,曾在外院拔除左上颌牙齿2颗。检查鼻腔未见新生物,左中鼻道少许脓性分泌物,左上拔牙处未愈合。如左上颌窦有新生物,应首先采取的措施是
不属于青少年心理健康教育主要内容的是
建设项目决策的类型有()。
(2009年)甲公司向乙公司购买水泵一台,为支付货款,签发了一张以自己为出票人、以乙公司为收款人、以M银行为承兑人、票面金额为30万元、到期日为2008年8月3日的银行承兑汇票,并交付给乙公司。甲公司和M银行均在该汇票上进行了签章。乙公司的财务人员A利用
中国海域辽阔,处于最北边的海峡是()。
【B1】【B8】
Theaimofthenewregulationsistomakeiteasierforprospectivehomeownerstohavefundsavailableforenergyimprovementsi
最新回复
(
0
)