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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Weve heard that a mothers weight during pregnancy can influence the weight of her offspring. Now a study of rats shows that the fat content in a moms d
发表于:2019-01-08 / 阅读(58) / 评论(0)
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可以当牙膏?苹果让人目瞪口呆的真相 1. Throwing apples at people was a way of declaring your love in ancient Greece. 1. 在古希腊,向别人扔苹果是一种示爱的方式。 Catching the fruit means acceptance of the feeling. I
发表于:2019-02-01 / 阅读(43) / 评论(0)
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We all have those days when all we want is to crawl back in bed for a few more hours. Unfortunately, few of us have that luxury. The following hints may help you stay energized, or at least get you going until you can make the time for rest。 我们都
发表于:2019-02-06 / 阅读(30) / 评论(0)
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