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    精英家教网 > 初中英语 > 题目详情
    以下有关动物激素和植物激素的叙述中，错误的是（          ）
    A．都是由专门器官分泌的B．对新陈代谢、生长发育都有重要调节作用
    C．在生物体内的含量都极少D．都是由活细胞产生的
    A解析:
    略
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