53. What does the author say about the use of navigation apps?
- A. It is likely to create traffic jams in other places.
- B. It helps a great deal in easing traffic congestion.
- C. It sharply reduces the incidence of traffic accidents.
- D. It benefits those who are learning to drive.
答案：A
答案句：The problem comes when everyone is using a navigation app which tells them to avoid everyone else using the same gadget. Traffic jams often appear where no one has enough information to avoid them. When a lucky few have access to the knowledge, they will benefit greatly. But when everyone has perfect information, traffic jams simply spread onto the side roads that seem to offer a way round them.
参考译文：当每个人都在使用导航应用，而该应用告诉他们避开同样使用该装置的其他所有人时，问题就出现了。交通堵塞常常出现在没有人有足够信息避开它们的地方。当少数幸运者能获得这些信息时，他们会大大受益。但当每个人都拥有完美信息时，交通堵塞就会蔓延到那些看似能绕行的侧路上。
定位线索：题干“use of navigation apps”→答案句“everyone is using a navigation app”；文中“traffic jams simply spread onto the side roads”对应选项A“create traffic jams in other places”；文中“benefit greatly”对应选项B“easing traffic congestion”的干扰。
解析：题干问作者对导航应用使用的看法。答案句指出当所有人都用导航时，拥堵会蔓延到侧路，即在其他地方制造拥堵，对应A项。B项“大大缓解拥堵”只适用于少数人使用的情况，范围扩大；C项“减少事故”无中生有；D项“学车者受益”答非所问。