BEIJING, Jan. 11 (Xinhua) -- Chinese President Xi Jinping has called for high-quality audit-based oversight to provide safeguards for the country's high-quality economic and social development.

QINGDAO, Jan. 11 (Xinhua) -- A carbon fiber metro train, dubbed CETROVO 1.0, began passenger service on Friday in the port city of Qingdao in east China's Shandong Province.