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周丛生物
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周丛生物
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周丛生物
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周丛生物
生活在浸没于水中的各种基质表面上的有机体集合群。包括基质上生长的所有生物,有细菌、真菌、藻类、原生动物、轮虫、甲壳动物、线虫、寡毛类、软体动物,甚至鱼卵和幼鱼等。这些有机体往往被一层黏滑的、甚至毛茸茸的泥沙所覆盖。
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information systems designer
information systems discipline
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information system success model
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Information Tasks: Toward a User-Centered Approach to Information Systems
information technique application
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