下图表示一个湖泊生态系统,湖泊内生存着水草、藻类、浮萍、鱼、虾等生物。请据图结合所学生物知识回答下列相关问题: 刷卷子,在线刷卷子,小学试卷 Template




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tomski下图表示一个湖泊生态系统,湖泊内生存着水草、藻类、浮萍、鱼、虾等生物。请据图结合所学生物知识回答下列相关问题: 刷卷子,在线刷卷子,小学试卷 coloring