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请将教材上P169页的“边练”完成。 提交作业的形式为:将作业结果,即创建的窗体截图,然后以附件形式提交。
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皮皮学刷刷变学霸
举一反三
【判断题】(    )使用子程序的目的和作用是简化编程。
A.
正确
B.
错误
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【多选题】How is nitrate assimilated by nitrate reductase and nitrite reductase in microorganisms, plants, and the animals?
A.
More than 90% of the NH 4 + generated by vascular plants, algae, and microorganisms comes from nitrate assimilation, a two-step process.
B.
First NO 3 ˉ is reduced to NO 2 ˉ by nitrate reductase, then the NO 2 ˉ is reduced to NH 4 + in a six-electron transfer catalyzed by nitrite reductase.
C.
Nitrate reductase is a large, soluble protein (Mr 220,000). Within the enzyme, a pair of electrons, donated by NADH, flows through - SH groups of cysteine, FAD, and a cytochrome (cyt b 557 ), then to a novel cofactor containing molybdenum, before reducing the substrate NO 3 ˉ to NO 2 ˉ.
D.
Six electrons, donated one at a time by ferredoxin, pass through a 4Fe-4S center in the enzyme, then through a novel heme-like molecule (siroheme) before reducing NO 2 ˉ to NH 4 + . In nonphotosynthetic microbes, NADPH provides the electrons for this reaction.
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【单选题】--You know who came yesterday? --Yao Ming? -- He came and watched the basketball match we had yesterday
A.
You guessed it!
B.
How did you know that?
C.
Well done!
D.
That was great news!
查看完整题目与答案
【简答题】13 --You know who came yesterday? --Yao Ming? -- He came and watched the basketball matchwe had yesterdayA. You guessed it! B. How did you know that? C. Well done! D. That was great news!
查看完整题目与答案
【判断题】No two electrons in an atom can have the same four quantum numbers
A.
正确
B.
错误
查看完整题目与答案
【单选题】中国国家主席习近平在和平共处五项原则发展六十周年纪念大会上强调,我们将坚定不移地走和平发展道路,坚持独立自主的和平外交政策。我国坚持独立自主的和平外交政策的决定因素是( )
A.
维护世界和平,促进共同发展
B.
和平共处五项原则
C.
独立自主,不结盟
D.
加强和发展同发展中国家的团结与合作
查看完整题目与答案
【单选题】系统调用是操作系统提供给编程人员的( )。
A.
一条机器指令
B.
接口
C.
中断子程序
D.
用户子程序
查看完整题目与答案
【单选题】以南洋华侨儿童生活为题材的长篇通话《小坡的生日》的作者是( )
A.
巴金
B.
艾芜
C.
老舍
D.
仇重
查看完整题目与答案
【单选题】子程序调用与子程序指令的操作码是( )。
A.
SBR
B.
SBR_n
C.
CALL
D.
C ALL_n
查看完整题目与答案
【判断题】No two electrons in the same atom can have the same four quantum numbers.
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【判断题】(    )使用子程序的目的和作用是简化编程。
A.
正确
B.
错误
查看完整题目与答案
【多选题】How is nitrate assimilated by nitrate reductase and nitrite reductase in microorganisms, plants, and the animals?
A.
More than 90% of the NH 4 + generated by vascular plants, algae, and microorganisms comes from nitrate assimilation, a two-step process.
B.
First NO 3 ˉ is reduced to NO 2 ˉ by nitrate reductase, then the NO 2 ˉ is reduced to NH 4 + in a six-electron transfer catalyzed by nitrite reductase.
C.
Nitrate reductase is a large, soluble protein (Mr 220,000). Within the enzyme, a pair of electrons, donated by NADH, flows through - SH groups of cysteine, FAD, and a cytochrome (cyt b 557 ), then to a novel cofactor containing molybdenum, before reducing the substrate NO 3 ˉ to NO 2 ˉ.
D.
Six electrons, donated one at a time by ferredoxin, pass through a 4Fe-4S center in the enzyme, then through a novel heme-like molecule (siroheme) before reducing NO 2 ˉ to NH 4 + . In nonphotosynthetic microbes, NADPH provides the electrons for this reaction.
查看完整题目与答案
【单选题】--You know who came yesterday? --Yao Ming? -- He came and watched the basketball match we had yesterday
A.
You guessed it!
B.
How did you know that?
C.
Well done!
D.
That was great news!
查看完整题目与答案
【简答题】13 --You know who came yesterday? --Yao Ming? -- He came and watched the basketball matchwe had yesterdayA. You guessed it! B. How did you know that? C. Well done! D. That was great news!
查看完整题目与答案
【判断题】No two electrons in an atom can have the same four quantum numbers
A.
正确
B.
错误
查看完整题目与答案
【单选题】中国国家主席习近平在和平共处五项原则发展六十周年纪念大会上强调,我们将坚定不移地走和平发展道路,坚持独立自主的和平外交政策。我国坚持独立自主的和平外交政策的决定因素是( )
A.
维护世界和平,促进共同发展
B.
和平共处五项原则
C.
独立自主,不结盟
D.
加强和发展同发展中国家的团结与合作
查看完整题目与答案
【单选题】系统调用是操作系统提供给编程人员的( )。
A.
一条机器指令
B.
接口
C.
中断子程序
D.
用户子程序
查看完整题目与答案
【单选题】以南洋华侨儿童生活为题材的长篇通话《小坡的生日》的作者是( )
A.
巴金
B.
艾芜
C.
老舍
D.
仇重
查看完整题目与答案
【单选题】子程序调用与子程序指令的操作码是( )。
A.
SBR
B.
SBR_n
C.
CALL
D.
C ALL_n
查看完整题目与答案
【判断题】No two electrons in the same atom can have the same four quantum numbers.
A.
正确
B.
错误
查看完整题目与答案