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Artificial intelligence will play an important part in areas such as education, medical care, and in creating jobs, he said.

Around 1500 GMT, WTI pulled back to .82 per barrel but was still down almost 41 percent compared with Friday. The fall is severe as it concerns the May contract due to expire later Monday and investors don't want to take physical possession of the oil, traders said.

Around that time, the UK, whose students ranked 26th that year, decided to adopt some Shanghai math mastery teaching techniques into the British curriculum, hoping that it would push England up the international league table. 

Arizona Gov. Doug Ducey planned to name a replacement to fill McCain's seat after the primary.

As CPC Central Committee General Secretary Xi Jinping said in his keynote speech at the meeting on Friday, the CPC is committed to striving for world peace and development, and the interactions among different countries and peoples will create favorable conditions for building a community of shared future for humankind.