【单选题】【消耗次数：1】
关于酶竞争性抑制的叙述错误的是
①
抑制剂与底物结构相似
②
抑制剂与底物竞争酶的结合部位
③
增加底物浓度也不能达到最大反应速度
④
当抑制剂存在时，Km值变大
参考答案：
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