共用题干 Car Thieves Could Be Stopped RemotelySpeeding off in a stolen car,the thief thinks he has got a great catch.But he is in a nasty surprise .The car is fitted with a remote immobilizer,and a radio signal from a control center miles away will ensure that once the thief switches the engine______(51),he will not be able to start it again.For now,such devices______(52)only available for fleets of trucks and specialist vehi- dles used on construction sites. But remote immobilization technology could soon start to trickle down to ordinary cars,and ______(53)be available to ordinary cars in the UK______(54)two months.The idea goes like this.A control box fitted to the car incorporates______(55)miniature cellphone, a microprocessor and memory, and a GPS satellite positioning receiver.______(56)the car is stolen,a coded cellphone signal will tell the unit to block the vehicle's engine management system and prevent the engine______(57)restarted.There are even plans for immobilizers______(58)shut down vehicles on the move, though there are fears over the safety implications of such a system.In the UK,an array of technical fixes is already making______(59)harder for car thieves."The pattern of vehicles crime has changed,"says Martyn Randall of Thatcham,a secur- ity research organization based in Berkshire that is funded in part______(60)the motor insur-ance industry.He says it would only take him a few minutes to______(61)a novice 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 a far tougher proposition,as their engine management computer will not______(62)them to start unless they receive a unique ID code beamed out by the ignition key .In the UK,technologies like this______(63)achieve a 3 1 percent 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 in a burglary. In 2000,12 percent of vehicles stolen in the UK were taken by using the owner's keys,which doubles the previous year's figure.Remote-controlled immobilization system would______(64)a major new obstacle in the criminal's way by making such thefts pointless.A group that includes Thatcham,the police,insur-ance companies and security technology firms have developed standards for a system that could go on the market sooner than the______(65)expects. 51._________
A.off B.on C.at D.of正确答案A
