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Apple ranked No 1 on Chinese consumers' complaints list in the first three quarters of this year, according to a recent report released by the country's top market regulator.

As China and the US have just signed the phase-one trade agreement, Wei noted that it is also "unwise" for the US side to throw a "grenade" in this key period.

Apple also announced a new standalone iTunes U app, redesigned to serve as a digital companion to a course, enabling posts and updates from teachers, and a syllabus and interactive list of assignments for the class. It’s also available for free starting today.

As China's first overland cross-border gas project, it is key to China's efforts to improve its energy mix and ensure its energy security. It provides around 15 percent of the country's annual natural gas consumption.

Apple and Samsung continued to dominate the smartphone market in 2016, but their combined shipment slipped from 555 million units in 2015 to 526 million in 2016, with market shares dropping four percentage points to 35 percent.