PASSAGE THREE [br] What does the author’s discussion mainly focus on in this pas

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问题 PASSAGE THREE [br] What does the author’s discussion mainly focus on in this passage?

选项

答案 The security and feasibility of Uber’s automated driving beta test．

解析作者在文章开篇引入优步要进行无人驾驶车道路测试这一话题，解释了这样做意味着什么，并反复引用正反两方面的观点来辩论优步是否应该进行这项测试，其探讨的焦点是这项测试的安全是否真的有所保障，以及其有效性究竟如何，而在文章结尾处，作者更是批评了匹兹堡市长的过度乐观，再次强调了这一事件的重要意义。可见，全文探讨的焦点是无人驾驶车测试的安全性和有效性，故答案为“The security and feasibility of Uber’s automated driving beta test．”。

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