单词：definite day-length plant
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April 14 is Plant Appreciation Day (PAD). This is when you appreciate just how important plants are to us. Few of us ever stop to think just how vital plants are to our survival. Without them, we wouldnt be here. Plants change the CO2 in the air into
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Let us study more closely the way in which a plant grows. The root pushes itself down into the earth. If it finds no water, it soon dies. If it finds water, it begins to suck it up and change it into
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音乐咖啡厅:Bosson - Definite Goodbye 相关介绍：Bosson是瑞典流行天王，他的歌迷遍及世界各地，尤其在俄罗斯，乌克兰等东欧地区更是人气火到一塌糊涂。那首地球人都广为皆知的One In A Million将
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AS IT IS 2016-10-09 Scientists Create Realistic Model of Dinosaur 科学家制作逼真的恐龙模型 British scientists have created what they believe is the best three-dimensional model of a dinosaur ever built. They say the model is almost the ex
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In many countries it has long been the tradition to hold an annual tree or forest festival. The origin of such celebrations dates back to antiquity and is in the dawn of religious feeling and awe for what trees represented. However, Arbor Day, as it
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Japans devastating 8.9-magnitude earthquake last Friday was so powerful that experts say it slightly increased the Earths rotation（旋转） speed, making the day a fraction of a second shorter. U.S. space agency scientist Richard Gross said the qu
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