В России допустили «второй Чернобыль» в Иране22:31
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Москвичей предупредили о резком похолодании09:45
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. »
· 周杰 · 来源：tutorial资讯