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单选题 英语运用能力测试
2011-11-26

The chips are different from the Global Positioning Satellite technology in that ____.（　　）

A．they are inserted into a person’s body as ID cards
B．they allow people’s location to be monitored
C．they provide information to a central monitoring system
D．they bring more danger to the carrier
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参考答案

C

答案解析

暂无解析

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