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【简答题】
焦磷酸酶可催化焦磷酸水解为磷酸，该酶的分子量为1.2×10 5 ，酶分子由六个亚基组成。纯酶的Vmax为2800单位/mg酶。酶的一个活力单位定义为：在标准测定条件下，37℃，15分钟水解10μmol焦磷酸所需的酶量。试计算 当底物浓度远大于Km值，1mg酶1秒钟内水解多少摩尔底物？
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举一反三
【单选题】Nick ______ a job in a bank , but to our surprise , he didn't take it . [ ]
A.
is offered
B.
offered
C.
was offered
D.
has offered
【单选题】He __________ his position as the manager of the department because he was offered a better job. [ ]
A.
regained
B.
repeated
C.
represented
D.
resigned
【单选题】—What do you think of your boss? —He ’s kind-hearted. Not only _______ what to do, but also he lent me money.
A.
he advised me
B.
does he advised me
C.
did he advise me
D.
he advised to me
【单选题】通常所记录的红外光谱是一种透射光谱；如果采用一些特殊附件可以测定反射光谱，清指出ATR是( )。
A.
漫反射附件
B.
衰减全反射附件
C.
镜反射附件
D.
光声光谱附件
【单选题】Jack a job in a bank, but to our surprise, he didn’t take it. A. is offered B. offered C. was offered D. has offered
A.
is offered
B.
offered
C.
was offered
D.
has offered
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