参考答案：B

解析：[听力原文] 26-30 China and India have roughly the same population, but when it comes to mobile phones, there is no comparison between the two. In India, seven years after the launch of mobile-phone services, there are only 10 million users. In China, half that number signs up as new subscribers every month. Geography and culture explain some of the differences. The concentration of economic activity in China’s eastern coastal region gave its mobile operators big economies of scale, allowing lower prices. In China, telephones quickly came to be regarded as fashion items, something that has only recently happened to India. But the main difference is regulation. India chose a licensing policy that divided the country into 22 regions, each with two licenses to operate mobile networks. Bidding in multiple regions was restricted. This aimed to promote competition, but led to a fragmented market with a baffling array of operators, none of which has economies of scale. Limited spectrum also hurt service quality.

[分析]： 主旨题。 寻找恰当标题的关键是看选项内容是否能够对原文进行适度概括。本文主要讨论中国和印度两国移动电话发展方面的不同，涉及发展速度及原因。选项C内容与此无关；选项D的内容仅是原文涉及的一方面内容，因此概括不恰当；选项A的内容又过于宽泛，因此概括也不恰当；只有选项B的内容适度概括了原文，因此，该项是正确的。 [解题关键] 正确概括文章大意，并将选项中关键词与之对比。