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China's environmental authorities have agreed in principle to pilot a cross-regional agency on air pollution in Beijing, Tianjin, Hebei and neighboring areas, 21st Century Business Herald reported Thursday.

China's high-speed railway has been built in different regions with diverse geographic conditions. It even runs on the frozen soil in the northeastern region and also crosses mountainous regions in the Qinling Mountain. The technology has so far proved solid.

China's draft rules aimed at preventing monopolistic behavior of internet platforms will help regulate online economic activities, stop anticompetitive practices, promote fair competition in the market and safeguard consumer interests, experts said.

China's economy expanded 6.9 percent last year, picking up for the first time in seven years and well above the government annual target of around 6.5 percent.

China's economic fundamentals remained sound as indicators such as industrial output and retail sales growth picked up in August, said the National Bureau of Statistics on Friday.