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【多选题】
下面有关酶的叙述错误的是
A.
酶的催化特性不仅取决于其一级结构，也取决于它的高级结构
B.
酶具有高效催化一个反应的能力，其主要原因是它大大降低了反应的活化能
C.
酶对催化的底物具有高度的立体选择性，但它不能识别一个前手性中心
D.
酶对催化的底物的选择性并非都是绝对的
E.
酶的比活力反映的是酶催化一个反应的能力，比活力越大，酶催化能力越强
F.
酶对所有底物都具有非常高的选择性
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