The median interval between onset of symptoms and diagnosis was three months.3例有家族史,且均为姊妹配对.Where the speed distribution is skew, it's better to quote the median speed.在速度分布是扭曲的情况下, 最好用中值速度.The average and median du...
恒星际空间根本不是人们凭空想象的虚空.The space between the stars is not some mythical void at all.天文学家通常认为,恒星际星尘都是紧靠着银河平面的.Astronomers usually assume that interstellar dust is closely confined to the galactic plane.一支舰队就是一组恒星际飞船.A fleet i...