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As Americans received the first shots of the Pfizer COVID-19 vaccine Monday, health officials were on the alert for any adverse reactions.

Apple noted that it will not resume grading Siri recordings until this fall when a software update is made to the device, which will give customers the right to control whether their Siri recordings could be used by Apple for quality improvement purposes.

As Beichuan is located in the Longmenshan Seismic Belt, it is not unusual for a string of quakes to occur there, said Wang Tun, director of the Institute of Care-Life in Chengdu.

Apple is seeking lidar units that would be smaller, cheaper and more easily mass produced than current technology, the three people said. The iPhone maker is setting a high bar with demands for a "revolutionary design," one of the people familiar with the talks said. The people declined to name the companies Apple has approached.

Artistic concepts that the teachers taught such as layering, lines and composition overwhelmed Zhang, as if the instructors were speaking in a foreign language.