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入侵物种会对当地群落结构和生物多样性产生灾难性影响．某课外探究小组的同学对某一块荒地的某种外来入侵植物和几种本地植物的种群密度进行了连续五年 Template






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tomski入侵物种会对当地群落结构和生物多样性产生灾难性影响．某课外探究小组的同学对某一块荒地的某种外来入侵植物和几种本地植物的种群密度进行了连续五年 coloring
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