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。
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He pulled on a welder's helmet for protection. He packed it with powder, struck a match and ran like hell.
And she's watched plenty of astronauts follow in her footsteps. Does she have any advice for the next generation dreaming of the stars?
rather than those you use now.