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Bezos said that anytime you’re doing something new and are criticized, you must figure out if those critics have validity.

Besides the intensive training on firefighting, life saving and survival skills, he also self-taught Cantonese and became a daai lou, meaning "big brother" among his colleagues.

Besides creating industrial giants, the restructuring offered a boost to their technological innovation capabilities and at the same time reduced management and production costs, according to Huang.

Being the largest crude and gas importer worldwide, China imported 440 million metric tons of crude oil in 2018, up 11 percent year-on-year leading to a foreign oil dependence ratio of 69.8 percent, according to China National Petroleum Corp's Economics and Technology Research Institute.

Besides China, there are clusters from five mid-income countries of Brazil, India, Iran, Russia and Turkey in the top 100.