中国大学MOOC: Which of the following only belongs to Chinese high-speed trains?
举一反三
- Which of the following only belongs to Chinese high-speed trains? A: Expanded rails. B: Free Wifi on the train. C: Multi-function seating. D: Integrated standard for train manufacturing.
- High-speed trains travel at 300 kilometers an hour, which is about __________ normal trains. A: four times the speed as B: the speed four times of C: four times as the speed of D: four times the speed of
- 中国大学MOOC: Which of the following belongs to clean and renewable energy?
- 中国大学MOOC: Which of the following methods belongs to document trade？
- 中国大学MOOC: Which of the following belongs to the four treasures of the study?