短短几周，成千上万亿美元的市值凭空消失。
2020年10月，正在广东考察的习近平总书记登上广济楼，远眺凝思。
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To: Vijaya Kaza, General Manager for App & Ecosystem Trust, Google。91视频对此有专业解读
Instead of taking the nearest candidates to , we can look for a set of candidates whose centroid is close to . The N-convex algorithm works by finding the closest colour to a given target colour for iterations, where the target is first initialised to be equal to the input pixel. Every iteration the closest colour added to the candidate list, and the quantisation error between it and the original input pixel is added to the target.