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【单选题】
关于酶竞争性抑制剂特点的叙述,错误的是
A.
抑制剂与底物结构相似
B.
抑制剂与底物竞争酶分子中的底物结合部位
C.
当抑制剂存在时，Km值变大
D.
抑制剂恒定时，增加底物浓度，能达到最大反应速度
E.
抑制剂与酶共价结合
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B.
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【单选题】I’m afraid it will be two months______.
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【单选题】I expect them _______ and I wish all the rooms _____________.
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【单选题】I’m afraid it will be two months______.
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【单选题】—Could you come here, please? I want some help. —Certainly. ________! [     ]
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【单选题】—May I come in? I'm sorry I'm late. —Come in, please. But could you tell me ? [      ]
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