Answered by Danielle
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Dec. 04, 2012 21:32
D is also called Hexiehao (Harmony) or bullet ones. The designed top speed is 250km/h. They have been widely used for serving fast and frequent transport between main cities, such as Beijing-Shanghai, Shanghai-Suzhou and Shenzhen-Guangzhou
G is Speed Electric Multiple Units (EMU) ones, which is the fastest running for long distance in China, the top speed of which could reach 350km/h.