Mrs. Flowers had already learned that Marguerite was a quiet girl who read a lot but
Priestley doesn’t think he has an iron will, and he is not sorry about it.()
Once talented young blacks have left Watts, they are not expected to return home and
下列关于关键酶的叙述，不正确的是
A. 一般位于代谢途径的起始或分支处
B. 催化单向不可逆反应
C. 活性较低，活性最低者又称为限速酶
D. 是可调节酶
E. 无重要生理意义
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