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At present, this system has been deployed in some hospitals, supermarkets, campuses and offices in major cities, including Beijing and Nanjing.

At the annual meeting of the IMF and the World Bank in Washington Sunday, China's central bank governor Zhou Xiaochuan said the economy would likely expand 7 percent year on year in the second half.

At the conference, China shared its advanced technologies in diverse fields including smart agriculture and water-saving irrigation systems, and also signed 10 deals of science and technology cooperation with several Arab countries, such as the construction of joint laboratories and big data service platforms.

At the extremes, only 2 percent of the respondents answered all questions right and 8 percent didn't get a single question right. The gap in digital literacy is vast among US citizens.

At talks underway last week in Washington, automaker and parts groups from all three countries were urging negotiators against tighter rules of origin, said Eduardo Solis, president of the Mexican Automotive Industry Association.