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CHANGCHUN - Four people were killed and another 17 injured in a road accident in Northeast China's Jilin province on Thursday, local authorities said.

By tracking users across those sites with what companies call a "unified ID", multiple retailers and tech companies are now able to not only tailor product recommendations to individual users but personalize the storefronts they visit according to their browsing and buying habits.

By the end of 2018, China had 163,800 elderly care institutions and facilities, nearly half of which were built with private investment, offering 7.46 million beds for senior citizens. Community-based services and facilities covered all urban areas and over half of rural communities.

By the end of November, the inventory of live pigs and breeding sows has reached over 90 percent of the levels seen in normal years, said the ministry.

CERAWeek, which kicked off on Monday in the US city of Houston, is an annual energy meeting featuring prominent speakers from energy, technology and financial sectors. This year's meeting attracts more than 3,000 guests from over 50 countries and regions.