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Shi said the higher a solar-powered drone can fly, the longer it is able to remain in the sky because there are no clouds 20,000 m above the ground and the airflow there is stable. Thus, the drone can fully use its solar cells to generate power. As long as the solar power system works well, the aircraft can stay in the air as long as the controllers wish.

Similarly, automobile maker Xiaopeng Automotive is planning to expand from 150 to 500 desks in the next few months, he said.

Since 2015, prosecutors nationwide have charged 128 people with obtaining profits by taking advantage of undisclosed investment-related information, according to Xian Jie, deputy director of the SPP's law policy research office.

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Since 2017, the demand for Mongolian coal has increased dramatically. China is the largest consumer of coal in the world and Mongolia's close neighbor. In the first six months of 2017, Mongolia managed to sell China a record amount of coal.

Since China began its economic reform policies, China's economy has achieved rapid development throughout every province. The country has experienced GDP growth at an average annual rate of 9.5 percent and is now the second-largest economy in the world.

Shortly afterward, New York Mayor Bill de Blasio declared a state of emergency.

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Silicon Valley North: Seattle continued to be a big focus for out-of-town tech companies, with Facebook announcing plans to expand into a big new office here, plus new engineering offices established here by Dropbox, Sears Home Services, Uber, Palantir and others.

Signs that tourists were eager to return to Macao began showing in August.

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Shu Man, a scholar with East China Jiaotong University, said that though the epidemic is basically curbed, winning anti-virus combat still requires persistence in COVID-19 response work.

Since 2015, Jilin has banned commercial logging in key forest farms to improve the habitat for Siberian tigers.