Old-fashioned phones matter when wireless networks in disasters.
A. turn down
B. break down
C. turn out
D. break out
网友回答
A. turn down
(答案→)B. break down
C. turn out
D. break out
解析:句意为:在灾难中当无线网络发生故障时,老式的电话就很重要了。turn down减小,关小,拒绝;break down 发生故障,身体跨了;turn out 结果是,证明是;break out 爆发。故答案为B。
考点: 考查动词短语的用法。