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
Computers in Cars You’re far from home on a lonely road. Shadowy forests stretch away on both sides. A thick mist(雾)makes it
Computers in Cars You’re far from home on a lonely road. Shadowy forests stretch away on both sides. A thick mist(雾)makes it
admin
2015-07-05
26
问题
Computers in Cars
You’re far from home on a lonely road. Shadowy forests stretch away on both sides. A thick mist(雾)makes it difficult to see far beyond your car’s windshield(挡风玻璃).
"Can this be route 90A?" you wonder. If it is, you should be near a town. Yet there’s no hint of one. Night is closing in. And you’re low on gasoline.
This is a situation where an in-car computer that can navigate would be a big help.
A car computer that navigates? Yes! Such computers exist. Several experimental models are being tested by General Motors, Ford, Chrysler, and several foreign car makers. These computers vary in detail. But they all contain series of maps on videodiscs or videotapes. For example, one computer system contains 13, 300 maps covering the continental US.
Before starting out on a trip, a driver can type in the code for the region he or she plans to drive through. The computer then shows a map of that region. At the same time, a tiny radio receiver linked to the computer goes to work. It picks up signals from navigation satellites such as the NAVSTAR network. Using these signals, the computer shows the car’s position at all times and displays this position on the map. The computer can also calculate and display the best route to follow.
A navigation computer may also receive and use data about road construction, weather conditions , and traffic jams. This information would be displayed to the driver and the computer would also use the information to work out alternate(交替的)routes.
Most cars nowadays also contain computers that help cars run more efficiently. Microprocessors(微处理机)control certain engine functions by regulating the mixing of fuel. Data on car speed, oil pressure, revolutions per minute, engine temperature, and fuel level can be displayed as digital data(numbers)or warning lights.
Some auto designers suggest that a central computer display be used to clearly present such timely information as car speed and fuel level. Warning lights would indicate a drop in oil pressure or a sudden rise in engine temperature. To get more information on these conditions, the driver could call it up on the computer display screen. When needed, the computer could be "asked" to provide navigation aid or information about the car’s condition.
Without signals from navigation satellites, the in-car computer______.
选项
A、would still be able to locate the. car’s position at all times
B、would fail to locate the car’s position
C、could still work out the best route to follow
D、would seek help from the radio receiver linked to it
答案
B
解析
本题问的是当车载计算机收不到来自导航卫星的信号时会出现什么情况。根据常识可以判断,计算机无法确定汽车的位置。此题可以通过第五段中的“Using these signals,the computer shows the car’s position at all times and displays this position on themap.”推断出来,本题是此句意思的反说。
转载请注明原文地址:https://kaotiyun.com/show/SWQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
MargaretSangerandBirthControlMargaretSanger,anAmericannurse,wasthefirsttostartthemodernbirthcontrolmovemen
TalkingtoKidsaboutSARS(非典)SchoolagechildrenmaybelearningaboutSARSfromadultsandthemedia,butmaynotknowwh
TalkingtoKidsaboutSARS(非典)SchoolagechildrenmaybelearningaboutSARSfromadultsandthemedia,butmaynotknowwh
TalkingtoKidsaboutSARS(非典)SchoolagechildrenmaybelearningaboutSARSfromadultsandthemedia,butmaynotknowwh
Nooneknewwhetherthisexpressedacceptanceofhisfateorjoyathisdeliverance.
A.ifthereisn’tenoughdopamineinyourbodyB.whataffectsmusclesallthroughyourbodyC.whichcannotbecuredyetD.
Americansstillhavebeengainingweight,althoughtheyhavecuttheiraveragefatintakefrom36to34percentoftheirtotald
A.ifthereisn’tenoughdopamineinyourbodyB.whataffectsmusclesallthroughyourbodyC.whichcannotbecuredyetD.if
Accordingtothemostrecentresearchonparenting,caretakerstendtousethreestrategiesfordiscipliningchildren.Power
Theauthoriskindtothechildrenbecauseshewantedtoplayanimportantroleinthechildren’slives.Whenitsnowed,theki
随机试题
下列组织中,属于第三世界国家的组织有()。
电话交流是通过语言表达而无法借助身体语言传递信息的交流方式,要使其获得良好的交流效果,你应该明确哪些打电话的基本准则?
A.不小于150平方米B.不小于100平方米C.不小于50平方米D.不小于40平方米E.不小于30平方米大型零售企业营业场所的面积()
根据《测绘合同》示范文本,对于乙方提供的图纸等资料及属于乙方的测绘成果,甲方有义务保密,不得向第三方提供或用于本合同以外的项目,否则乙方有权要求甲方按本合同工程款总额的()赔偿损失。
会计科目按其所提供信息的详细程度及其统驭关系不同,分为总分类科目和________。前者是对会计要素具体内容进行总括分类、提供总括信息的会计科目;后者是对总分类科目作进一步分类、提供更详细更具体会计信息的科目。
2014年2月,甲公司与乙公司签订一份不可撤销的销售合同,约定甲公司在2015年3月以每箱2万元的价格向乙公司销售100箱A产品。乙公司应预付定金20万元,若甲公司违约,双倍返还定金。2014年12月31日,甲公司尚未开始生产,库存中没有A产品及生产该产品
在下列各项中,属于财务管理经济环境构成要素的有()。(2007年考题改编)
预后最差的肺癌是()。
奶茶:牛奶
LudwigVanBeethovenLudwigVanBeethoven,amajorcomposerofthenineteenthcentury,overcamemanypersonalproblemstoac
最新回复
(
0
)