国外资料显示,动车组是城际和市郊铁路实现小编组、大密度的高效运输工具,备受世界各国青睐。国家投入260亿资金,2007年u0018月u00188日起实施全国铁路第六次大提速。尽管火车提速的好处有一箩筐,但事物都是一分为二的,实际上火车提速后有人欢喜有人愁,更多中下阶层的 Foreign data show that the EMU is an inter-city and suburban railway Xiaobian group, a high-density and efficient means of transport, has been favored by all countries in the world. The state invested 26 billion yuan in 2007, u00188 u00188 on the day of implementation of the national railway. Although the benefits of train speed have a basket, but things are divided into two, in fact, some people happy after the train speed up some worry, more middle and lower class