下列是一些池塘中常见的生物①鱼类②藻类③水生甲虫④池边杂食动

下列是一些池塘中常见的生物①鱼类②藻类③水生甲虫④池边杂食动物⑤水蚤将上述各生物构成一条食物链,其次序为(  )

A.         B.

C.         D.

答案

B

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