导读：2017年全国硕士研究生考试备考在于每天坚持的努力，每天坚持一点，就能取得不错的收获。文都网校考研页面分享《考研英语每日一练》。

　　今天的句子：

　　文章来源：

　　All Systems Stop

　　One reason for the complexity is that airlines were early adopters of computerised systems. They built their first electronic reservation systems in the early 1950s; Delta’s current system once belonged to a defunct airline that went bust in 1982. But as airlines merged and more new functions were added—from crew scheduling to passenger check-in and bag tracing— they have come to resemble technological hairballs in which one small problem quickly spirals into bigger ones that

　　even experts struggle to disentangle.

　　1.Why the system of the airlines is so complicated?

　　A) One small problem will bring reservation systems down.

　　B) New functions were added to the early users of the airlines.

　　C) Airlines introduced the IT system in early days.

　　D) IT system was introduced in Airlines’ infancy.

    如果您遇到任何考研相关的问题，欢迎在文都网校考研页面进行免费咨询！我们将竭诚为您服务！