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Billionaire investor Warren Buffett isn't a fan of investing in cryptocurrencies, calling them "nonproductive assets", an AP report said.

Born in South Africa, the 23-year-old graduated from Yale University in the United States, majoring in sociology.

Both companies have set up joint ventures dedicated to electric vehicles as well.

Big data and AI are two main technological innovations that the Beijing-based company uses in its platform, which digitalizes and personalizes English education.

Boeing employs about 65,000 workers to build aircraft and another 25,000 to provide services for commercial airlines.