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The Secret Life of Roots Plant roots are important to life on earth. Roots take in water and nutrients that the plant needs to live and grow. They also help secure plants in dirt to prevent erosion - the breakdown of soil by natural forces. Roots are
发表于:2018-12-16 / 阅读(38) / 评论(0)
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Fred Hoyle and his colleague Chandra Wickramasinghe further eroded enthusiasm for panspermia 我们已经在第三章里提到,弗雷德霍伊尔和他的同事钱德拉威克拉马辛格认为, by suggesting that outer space brought us not only
发表于:2019-02-17 / 阅读(31) / 评论(0)
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How To Save on Groceries By Growing Your Own Getting food from your own backyard can beat the supermarket any day, on both taste and price. Think thats too much work? Youd be surprised. You dont need to have a green thumb or a massive backyard to pla
发表于:2019-02-18 / 阅读(37) / 评论(0)
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