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【多选题】
关于pH对酶活性的影响,正确的是()
A.
影响酶的必需基团的状态
B.
也能影响底物的状态
C.
酶在一定的pH范围内发挥最高活性
D.
pH改变能影响酶的Km值
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参考答案:
举一反三
【判断题】上海发往北京的货物,燃油费最少为5M。
A.
正确
B.
错误
【简答题】Have you ever noticed that the more you have the more you want? Let’s face it. Thinking our life is good enough doesn’t come naturally to many people. When we have high expectations of everything in l...
【单选题】一个企业所拥有的产品线的数量叫做( )
A.
密度
B.
广度
C.
深度
D.
宽度
【单选题】Have you forgotten the______you made yesterday with my secretary to have the meeting in my office?
A.
appointment
B.
arrangement
C.
decision
D.
suggestion
【单选题】What happened at the hotel?
A.
There was no electricity.
B.
There was no water.
C.
There was a fire.
【简答题】A.There was a bomb scare. B.There was a terrorist attack. C.A fire alarm was set off by mistake. D.50 pounds of explosives were found.
【简答题】Have you ever noticed that the more you have the more you want? Let's face it. Thinking our life is good enough doesn't e naturally to many people. When we have high expectations of everything in life...
【判断题】上海发往北京的货物,燃油费最少为5M(提示:参考以下参数)。 空运路线及里程: 铁路运输线路及里程: 公路运输线路及里程:
A.
正确
B.
错误
【单选题】抗日根据地的第一部歌剧作品是李伯钊编剧、集体作曲、向隅定稿的[]
A.
农村曲
B.
军民进行曲
C.
荆轲
D.
大地之歌
【单选题】How many lugers were selected to join China's first national luge team in Beijing’s Yanqing County.
A.
Eight male and ten female lugers
B.
Ten male and eight female lugers
C.
Ten male and ten female lugers
D.
Twelve male and twelve female lugers
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