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The abrupt shift in strategy was laid out by the space agency’s recently confirmed administrator, Jared Isaacman. Announcing the changes on Friday, he said that Nasa would introduce at least one new moon flight before attempting to put humans back on the lunar surface for the first time in more than half a century, in 2028.
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第一节 扰乱公共秩序的行为和处罚
2.最近一年销售收入在5000万元至2亿元（含）的企业，比例不低于4%。