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  3. To know what is exactly happening on the roads, we don’t need to JamBayes is different from the previously mentioned technologi

To know what is exactly happening on the roads, we don’t need to JamBayes is different from the previously mentioned technologi

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问题 To know what is exactly happening on the roads, we don’t need to
JamBayes is different from the previously mentioned technologies as it
选项 A、helps the drivers to choose the fastest lane.
B、send information to cars in the system.
C、is based on a technique modeling to combine various data.
D、helps the drivers to avoid congestion.
答案C
解析 事实细节题。由题干中的JamBayes定位至第四段第二句。该句提到了一个名为JamBayes的交通预测系统。接着对其工作方式及原理进行了说明：用户填写自己喜欢的路线，然后以电邮或短信的方式收到警告，提醒他们将遇到的拥堵。该系统使用一种名为Bayesian的技术，将实时交通数据与历史数据，天气信息及其他日程信息结合起来。答案选项是对该系统工作原理的总结，故正确。该段第三句只提到用户喜欢的路线，没有提到最快路线，第二段末句提到the fastest lane，但这是VICS的功能；从首段末句可知，让司机了解路况信息是路况监测系统的基本功能，在这点上作者没有指明JamBayes与其他系统有何不同；第三句提到warning them of impending traffic jam，没有说帮助司机避免拥堵。
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