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Among them, 13 were profitable in 2017, with three companies seeing their user base exceed 5 million.

Among the doctorate recipients in engineering in 2015, only 45 percent were US citizens and permanent residents, and nearly 55 percent went to temporary visa holders; similarly in mathematics and computer science, US citizens and permanent residents got only 43 percent and more than 50 percent were obtained by foreign students, according to data from the National Science Foundation.

Among them, 13 items-including allowing enterprises to start businesses online, promoting electronic business licenses, handling the registration, trading and tax paying of property through one window, and promoting the single window for international trade-will be replicated nationwide, it said.

Among the 41 industries surveyed, 31 posted year-on-year profit growth during the first five months.

Amid speculation that a major tariff war may not materialize, the Dow Jones industrial average fluctuated wildly on Wednesday, plunging 501 points after the opening bell but closing the day up 230 points at 24,263. The S&P 500 closed the day up 1.16 percent.