单词：lignocellulosic anthracite
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美国学生历史
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This is Scientific American's 60-Second Science. I'm Christie Nicholson. This will just take a minute. So check this out: Hi my name is Adi Rajagopalan, I'm going on 18 in a few days, and my project was Modelling Synergistic Cellulolytic-Hemicellulol
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The assassination of the governor of Pakistan's Punjab province was a shock, coming as it did in the middle of a political crisis for the government. Analysts believe it will have no direct major effect on the central government's precarious stabilit
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Giving the Seedligns a Hand A man of the state of Song was worried about his seedlingsgrowing too slowly He pulled up the seedlings one by one and went home exhausted．I am tired out today．I helped the seedlings to grow，he said to his family．H
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