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Blockchain is a significant emerging technology to promote innovation in the digital economy, but the "bottom line" is to ensure it will not lead to financial risks or threaten privacy, Li said.

Both law enforcement personnel and the general public lack experience and rules to guide them, Yuan said.

Boeing has met with Southwest, American and United—the three US airlines that fly the 737 Max—and European carriers to discuss safety and software updates. The company has hired a public relations company and may run advertisements to promote the plane, The New York Times reported.

Both judicial officials noted judges nationwide are ordered to give equal protection to litigants no matter where they are from.

Bike sharing giant Mobike has introduced parking controls for its service. Users who park the company's share bikes in forbidden areas in downtown Shanghai will receive a message on their phone reminding them to use the designated bike parking areas.