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By then, trains will run at a designed speed of 250 km/h, slashing travel time between the two cities from 16 hours to three hours.

CARACAS - Venezuelan President Nicolas Maduro on Wednesday announced he was severing "diplomatic and political" ties with the United States after the US authorities recognized the opposition leader Juan Guaido as the nation's interim president.

By scanning a bike's QR code with a smartphone, riders can pedal away for as little as 0.5 yuan (.4). The services allow users to pick up or drop off the bikes almost anywhere. Deposits vary between 99 and 299 yuan.

CATL said the technology, which includes more than 70 core patents, will increase mass energy density by 10-15 percent, improve volume utilization efficiency by 15-20 percent and reduce the amount of parts for battery packs by 40 percent.

By the end of 2019, national high-tech zones housed 81,000 high-tech enterprises, accounting for 35.9 percent of the country's total.