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【单选题】
最早的商业银行产生于( )A.
英国
B.
意大利
C.
美国
D.
法国
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反馈参考答案：
举一反三
【单选题】The first step in a PCR cycle is to heat the sample to 95°C. What is the purpose of heating the sample?
A.
To separate the two strands of DNA
B.
To allow the primer to anneal to the template
C.
To produce the optimal temperature for Taq dna polymerase to work
D.
To produce the optimal temperature for most enzymatic reactions
【简答题】李某因病医治无效而死亡，这在民法上属于（ ）。
【单选题】If the DNA strand shown below is used as a template for RNA polymerase, what would be the sequence of the resultant mRNA following transcription? 5'-CATTCCATAGCATGT-3'
A.
5'-UGUACGAUACCUUAC-3'
B.
5'-CAUUCCAUAGCAUGU-3'
C.
5'-GUAAGGUAUCGUACA-3'
D.
5'-ACAUGCUAUGGAAUG-3'
【单选题】The first step in a PCR cycle is to heat the sample to 95°C. What is the purpose of heating the sample?
A.
To allow the primer to anneal to the template
B.
To separate the two strands of DNA
C.
To produce the optimal temperature for Taq dna polymerase to work
D.
To produce the optimal temperature for most enzymatic reactions
【简答题】与波浪理论密切相关的理论有（ ）。
【单选题】What is the main enzyme component of Sanger sequencing?
A.
Helicase
B.
Polymerase
C.
Nuclease
D.
Gyrase
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