New analysis of Apollo Moon samples finally settles debate: « For decades, scientists have argued whether the Moon had a strong or weak magnetic field during its early history (3.5 - 4 billion years ago). Now a new analysis shows that both sides of the debate are effectively correct. »
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The Trump administration's crackdown on immigration is also curbing population growth. That makes it harder to find workers, but it also means fewer are needed.
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中小商户的转型工具箱：从“卖床位”到“卖体验”