风味鳕鱼是一道朝鲜名菜,不是总能吃到的.比如在2011年日本福岛

风味鳕鱼是一道朝鲜名菜,不是总能吃到的.比如在2011年日本福岛核电站发生泄漏事件,不久在日本近海海水中检测出放射性元素“铯”.在日本近海有这样一条食物链中:硅藻→浮游动物→鲱鱼→鳕鱼,铯含量最高的生物是(  )

A.硅藻 B.浮游动物 C.鲱鱼 D.鳕鱼

答案

D

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