下列哪一选项所描述的对象不可以构成生态系统a.蝉吸�汁螳螂捕蝉黄雀在后b.置于阳台上的水箱内有�鱼蟹水草沙石水�鱼食物c.一块 Template




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tomski下列哪一选项所描述的对象不可以构成生态系统a.蝉吸�汁螳螂捕蝉黄雀在后b.置于阳台上的水箱内有�鱼蟹水草沙石水�鱼食物c.一块 coloring