Accordingtothespeed,Chinesetrainsaredividedintodifferen...
问题详情:Accordingtothespeed,Chinesetrainsaredividedintodifferentclasses,identified(确认)withdifferentlettersandnumbers.Thelettersrefertodifferentclasses. G﹣High﹣SpeedElectricMultipleUnits(EMU)Train Th...