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【简答题】
黄河流经我国9个省(自治区),支流众多,注入渤海。全长5464千米,是我国第二长河。读“黄河水系图”,回答下列各题。 小题1:关于图中地理事物的叙述,正确的是(   ) A.易发生凌汛的河段是①和④ B.B山脉是黄河水系与长江水系的分水岭 C.A山脉是季风区与非季风区的分界线 D.②处是有“塞上江南”之称的宁夏平原 小题2:近几年在黄河干流③处修建的著名的水利枢纽工程是(   ) A.龙羊峡 B.刘家峡 C.三峡 D.小浪底
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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
【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.
【简答题】08-32捣固车用了多少个子程序?这些子程序的作用是什么?
【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!
【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!
【判断题】No two electrons in an atom can have the same four quantum numbers
A.
正确
B.
错误
【多选题】子程序的作用是()
A.
简化程序
B.
程序复杂化
C.
实现加工中的局部运动
D.
无作用
【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
【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
【判断题】No two electrons in the same atom can have the same four quantum numbers.
A.
正确
B.
错误
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