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【单选题】
当底物浓度达到饱和后,如再增加底物浓度:
A.
酶的活性中心全部被占据,反应速度不在增加
B.
反应速度随底物的增加而加快
C.
形成酶—底物复合物增多
D.
随着底物浓度的增加酶失去活性
E.
增加抑制剂反应速度反而加快
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A.
醇母菌
B.
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C.
香料
D.
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E.
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A.
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B.
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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A.
①②③
B.
②③④
C.
①③④
D.
①②③④
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