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发布时间：2006-07-17 09:33     点击：

　　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.

　　31. What's the function of the remote immobilizer fitted to a car?

　　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.

　　32. By saying 'The pattern of vehicle crime has changed' (Lines 1-2. Para. 3). Martyn Randall suggests that

　　A) it takes a longer time for the car thief to do the stealing

　　B) self-prepared tools are no longer enough for car theft

　　C) the thief has to make use of computer technology

　　D) the thief has lost interest in stealing cars over 10 years old

　　33. What is essential in making a modem car tougher to steal?

　　A) A coded ignition key.  C) A special cellphone signal.

　　B) A unique ID card.      D) A GPS satellite positioning receiver.

　　34. Why does the tracking system set a 100-metre minimum before sending an alarm to the operations centre?

　　A) To leave time for the operations centre to give an alarm.

　　B) To keep police informed of the car's movements.

　　C) To give the driver time to contact the operations centre.

　　35. What will the operations centre do first after receiving an alarm?

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