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【判断题】
锅炉受热面中过热器和再热器的工作条件是最恶劣的。( )
A.
正确
B.
错误
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参考解析：
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举一反三
【单选题】Which of the following enzymes cannot catalyze the formation of a phosphodiester bond?
A.
endonuclease
B.
RNA polymerase
C.
DNA polymerase
D.
ligase
E.
none of the choices are correct.
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【多选题】下列( )属于烦恼产生的原因
A.
执着
B.
好高骛远
C.
太自私
D.
嫉妒心
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【单选题】___________ restriction endonucleases, first isolated by Hamilton Smith in 1970, are simpler, require no ATP, and catalyze the hydrolytic cleavage of particular phosphodiester bonds in the DNA within ...
A.
Type I
B.
Type II
C.
Type III
D.
Type IV
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【单选题】Which of the following would prevent the formation of a phosphodiester bond in DNA?
A.
removal of a nitrogen from one of the bases
B.
removal of oxygen from carbon 2 of the sugar
C.
removal of an oxygen from carbon 3 of the sugar or removal of the phosphate from the gamma position of the nucleoside triphosphate
D.
removal of the phosphate from the alpha position of the nucleoside triphosphate
E.
removal of the phosphate at the beta position of the nucleoside triphosphate
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【单选题】Depurination does not break the DNA phosphodiester backbone but instead removes a purine base from a nucleotide, giving rise to lesions that resemble missing _____.
A.
nose
B.
eyes
C.
teeth
D.
ears
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【单选题】随着变换反应的进行，变换率增大，最适宜温度（）。
A.
降低
B.
升高
C.
不变
D.
没有关系
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【单选题】DNA ligase catalyzes the formation of a phosphodiester bond between a 3′ hydroxyl at the end of one DNA strand and a 5′ phosphate at the end of another strand. The phosphate must be activated by adeny...
A.
AMP
B.
ADP
C.
NAD +
D.
NADP +
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【单选题】Once the two fragments are joined, the final sealing phosphodiester bond is formed by
A.
Polymerase
B.
exonuclease
C.
Transcriptase
D.
Ligase
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【判断题】中年期分析能力、思维能力和创造能力都处于最佳时期
A.
正确
B.
错误
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【单选题】关于法治思维,正确的表述是
A.
法治思维以法治价值和法治精神为依据
B.
法治思维以法律原则和法律规则为指导
C.
法治思维以法律手段与法律方法为依托
D.
法治思维是一种部分符合规律、尊重事实的科学思维
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相关题目：
【单选题】Which of the following enzymes cannot catalyze the formation of a phosphodiester bond?
A.
endonuclease
B.
RNA polymerase
C.
DNA polymerase
D.
ligase
E.
none of the choices are correct.
查看完整题目与答案
【多选题】下列( )属于烦恼产生的原因
A.
执着
B.
好高骛远
C.
太自私
D.
嫉妒心
查看完整题目与答案
【单选题】___________ restriction endonucleases, first isolated by Hamilton Smith in 1970, are simpler, require no ATP, and catalyze the hydrolytic cleavage of particular phosphodiester bonds in the DNA within ...
A.
Type I
B.
Type II
C.
Type III
D.
Type IV
查看完整题目与答案
【单选题】Which of the following would prevent the formation of a phosphodiester bond in DNA?
A.
removal of a nitrogen from one of the bases
B.
removal of oxygen from carbon 2 of the sugar
C.
removal of an oxygen from carbon 3 of the sugar or removal of the phosphate from the gamma position of the nucleoside triphosphate
D.
removal of the phosphate from the alpha position of the nucleoside triphosphate
E.
removal of the phosphate at the beta position of the nucleoside triphosphate
查看完整题目与答案
【单选题】Depurination does not break the DNA phosphodiester backbone but instead removes a purine base from a nucleotide, giving rise to lesions that resemble missing _____.
A.
nose
B.
eyes
C.
teeth
D.
ears
查看完整题目与答案
【单选题】随着变换反应的进行，变换率增大，最适宜温度（）。
A.
降低
B.
升高
C.
不变
D.
没有关系
查看完整题目与答案
【单选题】DNA ligase catalyzes the formation of a phosphodiester bond between a 3′ hydroxyl at the end of one DNA strand and a 5′ phosphate at the end of another strand. The phosphate must be activated by adeny...
A.
AMP
B.
ADP
C.
NAD +
D.
NADP +
查看完整题目与答案
【单选题】Once the two fragments are joined, the final sealing phosphodiester bond is formed by
A.
Polymerase
B.
exonuclease
C.
Transcriptase
D.
Ligase
查看完整题目与答案
【判断题】中年期分析能力、思维能力和创造能力都处于最佳时期
A.
正确
B.
错误
查看完整题目与答案
【单选题】关于法治思维,正确的表述是
A.
法治思维以法治价值和法治精神为依据
B.
法治思维以法律原则和法律规则为指导
C.
法治思维以法律手段与法律方法为依托
D.
法治思维是一种部分符合规律、尊重事实的科学思维
查看完整题目与答案