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Apple posted record revenue on Tuesday but faces new challenges in production of the iPhone as China shuts down major cities to contain the potentially deadly coronavirus, the company said.

As China has seen exponential growth in the past 20 years, new generations of entrepreneurs and investors are starting to shift their focus to traditional culture.

Art enthusiasts at the Shanghai Museum for the Pathways to Modernism — American Art, 1865-1945 exhibition on Nov 13. Gao Erqiang / China Daily

Apple's 4-to-1 stock split would have reduced the Dow's weighting of technology stocks to 20.3 percent from 27.6 percent. Adding Salesforce boosts technology to about 23 percent.

Applications for the test closed Wednesday and the qualification examination was completed Friday.