已知中国境内家马的出现，大约晚至距今4000年的黄河上游地区，例如属于齐家文化的甘肃永靖大何庄遗址、玉门火烧沟遗址等。而黄河中下游地区出现家马，则更晚至商代晚期的安阳殷墟遗址。
Monday’s snowball fight, which appeared to be organized by social media content producers, caused a chaotic scene as a large crowd amassed at the popular park to wing snowballs at each other during a winter storm.
tasks = runtime.move2heap(tasks)
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