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Among the three, life expectancy, as a scientific measure of the average time one is expected to live, is the most direct and accurate index that reveals the social, health care and economic conditions in a city or a country.

Amid surging passengers and flights, China's civil aviation industry has created the longest safety record of 100 months and 68.35 million hours of sustained safe flight as of the end of 2018, according to CAAC.

Among the IP cases, those related to online copyrights accounted for more than 99 percent, and they were mainly caused by the use of photographs, it said.

Amazon’s credit card is pretty low-tech service, offering perks like?3 percent back on Amazon.com purchases, but in July,?Amazon did roll out Amazon Wallet, an Android application that allows customers to save gift and loyalty cards to the phone. Amazon is not currently?enabling?payments through Amazon Wallet, even though it clearly has the resources to enter the space.

Amazon’s smart assistant Alexa now tops 7,000 skills, a 7X increase in 7 months