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"Compared with traditional courses, AI lessons are set to offer personalized learning at a larger scale and lower cost," Liu said on Thursday.
"Current flight test of the Mars 2020 Lander Vision System will help enable safe landing in more scientifically interesting places in space, including future human exploration of the Moon and Mars," NASA's Jet Propulsion Laboratory tweeted.
"Compared with other transportation means, high-speed trains are more comfortable and punctual. It is the preferred choice for many passengers," said Wei.
"Curbing the tide of the current COVID-19 pandemic lies in the ability of countries to rapidly test their entire populations," said Kuok Meng Han, founder and managing director of Camtech from Singapore.
"Chinese companies offer very relevant products for African consumers because they are affordable and of good quality," Chapatte said on the sidelines of the launch of the Africa Food Index.
来源：资阳报