试题题干
The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.
A control box fitted to the car contains a mini-cellphone, a micro-processor and memory, and a GPS satellite positioning receiver. If the car is stolen, a coded cellphone signal will tell the control center to block the vehicle's engine management system and prevent the engine from being restarted.
A （） device to protect the car.
参考答案
正确答案：
试题解析
本段主要讲述的是一种保护汽车的技术设备。汽车上安装的控制盒包含一部微型无绳电话、微处理器、存储器以及全球定位系统的卫星接收器，如果汽车被盗，一个被编码的无绳电话信号就会提醒控制中心停止车辆发动机管理系统，防止发动机被再次启动。technical 科技的，技术上的。