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【单选题】
下列哪一项符合诱导契合学说?( )A.
酶与底物的关系有如锁和钥匙的关系
B.
在底物影响下，酶的活性中心的空间可发生一定改变，与底物进行反应
C.
底物的结构朝着适应酶活性中心方向改变
D.
底物与酶的变构部位结合后，改变酶的，使之与底物相适应
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