1, 1700 km/h 1 hour 4 1 minute.

2. 1 18 1 km, 500 km/h, 2 hours and 2 minutes. Qinghai is a province in western China, located in the south of Qinghai-Tibet Plateau. The Qinghai-Tibet Railway runs through the province, covering an area of 7.643 million square kilometers. Qinghai Lake is its largest lake.