听力原文：

Nobody knows the true state of the national grid until something goes badly wrong, as it did  in October 2012 when Hurricane Sandy left almost 8m people powerless, some for weeks. The number of big outages, defined as those affecting more than 50, 000 people, has more than doubled in the past ten years.

本题考查应对数字。

原文说在过去10年里，影响5万多人的大规模停电数量增加了一倍多。而题干说5万人遭遇大面积停电，忽略了more than 50, 000 people，应该是多于5万，与原文不符，所以错误。