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Blockchain has less effect on bureaucratic and monopolistic companies. For the collaborative business model, which needs equally authorized organizational structure, it is often difficult to reach a unified consensus on structural design. For example, cross-ministerial networks usually involve many departments, and it is difficult to determine who is at the center, and where the central database should be placed.

Boeing says the procedure for dealing with a so-called runaway stabilizer, under which anti-stall systems push the nose down even when the plane is not entering a stall or losing lift, had not changed between earlier version of the 737 and the newly delivered 737 MAX.

Born and raised in Beijing, Li followed in the footsteps of his chef grandfather. From childhood, Li joined his family in trying different local restaurants-something of a luxury 40 years ago.

Both Biden and Trump already have clashed on the approach to addressing the coronavirus pandemic, which will naturally become a major issue, possibly the only issue, in the fall campaign. Earlier this week, however, both men reportedly had a "warm" conversation on the issue.

Both US senators from New Hampshire — Jeanne Shaheen and Maggie Hassan — also have been mentioned, according to The New York Times.