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 immobilizer(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-cell-phone, a microprocessor and memory, and a GPS(全球定位系统) satellite positioning receiver. If the car is stolen, a coded cell-phone signal will tell the control centre to block the vehicle’s engine management system and prevent the engine 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
A. To help the police make a surprise attack on the car thief.
B. To allow the car to lock automatically when stolen.
C. To prevent the car thief from restarting it once it stops.
D. To prevent car theft by sending a radio signal to the car owner.
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