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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.

Amid the hustle and bustle of neighboring urban villages, the marketplace is also a little-known shelter for debt-ridden and internet-addicted youngsters, who are tired of the monotonous work at assembly lines and have chosen to pursue an unexamined life working as temporary laborers and paid by the day.

Amid a spattering of local COVID-19 infections, China is ramping up preparedness at fever clinics nationwide and striving to prevent hospital-acquired infections, the National Health Commission said on Thursday.

Americans need to realize that China has to upgrade its productivity and its technology. This is the only way it can escape the middle-income trap over the next 10 years.

Among the worst-hit areas was Tokyo, where there were 60 cases, the highest number in a day since the emergency was lifted in the capital.