A: Speeds up to 199 km/h.
B: The need for a wider curve radius.
C: Tracks made with continuous welded rails.
D: The use of dedicated lines or upgraded existing lines.
举一反三
- Which of the following is not an element of high-speed rail? A: The need for a wider curve radius. B: Speed up to 199 km/h. C: Tracks made with continuous welded rails. D: The use of dedicated lines.
- 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
- One of the 3 elements of high-speed train is ______ A: speed up to 199km/h B: need for a smaller curve radius C: track made with continuous welded rail D: speed up to 500km/h
- a long section of track without joints A: dedicated line B: curve radius C: continuous welded rail
- High –speed rail is public transport by rail at speeds in excess of ________ km/h.
内容
- 0
The high-speed train runs exclusively on a(n) _____________. A: dedicated line B: existing line C: special track D: continuous welded rail
- 1
The tracks of high-speed train must have a ________ A: longer curve radius B: shorter curve radius C: thinner curve radius D: wider curve radius
- 2
What is the main purpose of the report? A: to compare high-speed rail lines B: to propose building high-speed rails C: to explain the development of high-speed rail D: to discuss the design of high-speed rail
- 3
Which of the following is NOT an element of high-speed rail?
- 4
The State Railway Administration of China defines high-speed rail as a new railway line running at speeds of over 350 km/h and a dedicated railway passenger line operating at speeds of not less than 200 km/h at the initial stage.