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怎样辨别鱼的好坏
更新时间： 2020-10-05 00:00:00  

看形体：污染严重的鱼，形态不整齐，头大尾小，椎弯曲甚至畸形，皮部发黄，尾部发青，带毒的鱼眼睛浑浊，无光泽，有的甚至向外鼓出；看鱼腮：腮是鱼的呼吸器官，相当于人的肺，大量的毒物就可能蓄积在这里，有毒的鱼腮不光滑，较粗糙，呈暗红色；闻气味：正常的鱼有明显的腥味，污染了的鱼则气味异常，根据各种毒物的不同，分别呈大蒜气味、氨味、煤油味、火药味等不正常的气味，含酚量高的鱼腮还可能被点燃。

关键词： 怎样 辨别 好坏

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