• 2022-05-31
    The high-speed train runs exclusively on a(n) __________________.
    A: existing line
    B: dedicated line
  • B

    内容

    • 0

      High-speed trains are generally operated on _____ lines. A: dedicated B: existing

    • 1

      The main factors which affect the pressure wave when two high-speed trains meet: A: The speed of the meeting trains B: The streamline degree of train C: Line spacing D: Train marshalling form E: Train power distribution form F: Train traction power supply mode

    • 2

      The speed of high-speed train is over ( ).

    • 3

      The less expensive option of constructing special tracks for high-speed train is utilizing __________ . A: dedicated lines B: existing lines C: specail lines D: continuous welded rails

    • 4

      2. Where is the train line? The train line ____north ____the town.