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【单选题】
关于温度对酶促反应速度的影响叙述正确的是
A.
是指达最大反应速度一半时的温度
B.
与反应时间无关
C.
温度对酶促反应速度的影响不仅包括升高温度使速度加快,也同时会使酶逐步变性
D.
是酶的特征常数
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参考答案:
举一反三
【判断题】吸附剂的再生方法有:加热解吸再生、降压或真空解吸、置换再生、容剂萃取再生、化学转化再生。
A.
正确
B.
错误
【单选题】Men are more suited to occupational environments ______ require decisive action while women are better at jobs ______ a considered approach is most important. [     ]
A.
which, that
B.
/, when
C.
which, when
D.
that, where
【多选题】吸附剂的再生方法有
A.
加热脱附
B.
加压脱附
C.
置换脱附
D.
溶剂萃取
【单选题】从事国际联网业务的单位和个人,应当遵守国家有关法律法规不得()妨碍社会治安的信息和淫秽色情等信息。a、制作 b、查阅 c、复制 d、 传播 e、处理
A.
bc
B.
abcd
C.
ace
D.
abcde
【单选题】红细胞膜上钠泵活动所需能量主要由葡萄糖通过哪条途径产生
A.
糖原分解和有氧氧化
B.
糖原分解和无氧氧化
C.
糖酵解和磷酸戊糖旁路
D.
糖原异生和磷酸戊糖旁路
【判断题】从事国际互联网业务的单位和个人,应当遵守国家有关法律、行政法规,严格执行安全保密制度,不得利用国际互联网从事危害国家安全、泄露国家秘密等违法犯罪活动,不得制作、查阅、复制和传播妨碍社会治安和淫秽色情等信息。
A.
正确
B.
错误
【单选题】Keeping busy at important tasks is much more motivating than having too little to do. Today’s employees are not afraid of responsibility. Most people are willing to take on extra responsibility in ord...
A.
variety and independence on the job increase employee motivation.
B.
to avoid boredom, many people do more work than their jobs require of them.
C.
today's employees are demanding more independence than ever before.
D.
office jobs in the past have carried less responsibility.
【单选题】红细胞膜上钠泵活动所需的ATP主要通过( )来供给的
A.
葡萄糖有氧氧化
B.
糖酵解和磷酸戊糖旁路
C.
脂肪酸氧化
D.
氨基酸的脱氨基作用
E.
嘌呤核苷酸循环
【单选题】Keeping busy at important tasks is much more motivating than having too little to do. Today’s employees are not afraid of responsibility. Most people are willing to take on extra responsibility in ord...
A.
variety and independence on the job increase employee motivation
B.
to avoid boredom, many people do more work than their jobs require of them.
C.
today’s employees are demanding more independence than ever before.
D.
office jobs in the past have carried less responsibility.
【单选题】下列哪条途径是红细胞膜上钠泵活动所需ATP的主要来源
A.
葡萄糖有氧氧化
B.
糖酵解和磷酸戊糖旁路
C.
脂肪酸β-氧化
D.
氨基酸的脱氨基作用
E.
嘌呤核苷酸循环
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