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【单选题】
需要以RNA为引物的过程是( )
A.
复制
B.
转录
C.
反转录
D.
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参考答案：
举一反三
【简答题】企业号的消息中心可以对两类消息进行查看和管理,一类是 ,一类
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【单选题】设 是来自总体 的样本,且 ,则( )是 的无偏估计.
A.
;
B.
;
C.
;
查看完整题目与答案
【单选题】如果A公司要求C公司开具增值税专用发票，C公司开具发票时应填写的增值税额为：
A.
31.97万元
B.
37.40万元
C.
41.12万元
D.
45.06万元
查看完整题目与答案
【单选题】When a quota is imposed in a domestic market:
A.
domestic producers capture all of any future increase in demand.
B.
foreign producers capture all of any future increase in demand.
C.
the government captures all of any future increase in demand.
D.
none of the above
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【单选题】《特种设备安全监察条例》所称的特种设备是指涉及生命安全、危险性较大的锅炉、压力容器(含气瓶)、压力管道、电梯、起重机械、客运索道、大型游乐设施和场(厂)内专用机动车辆。
A.
正确
B.
错误
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【单选题】它是最早成为中国被迫开放的通商口岸之一,工人阶级在这里首先登上政治舞台,中国共产党也从这里开始踏上革命征程。今天,它已经成为长江流域经济起飞的龙头。它是 ( )
A.
北京
B.
武昌
C.
武汉
D.
上海
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【单选题】大环内酯类对下述何菌无效
A.
G+菌
B.
G-菌
C.
大肠杆菌、变形杆菌
D.
军团菌
E.
支原体和衣原体
查看完整题目与答案
【判断题】《特种设备安全监察条例》规定，特种设备是指涉及生命安全、危险性较大的锅炉、压力容器、压力管道等八种设备。
A.
正确
B.
错误
查看完整题目与答案
【多选题】How is the protein synthesis initiated in eukaryotes?
A.
In eukaryotes, an initiator tRNA, charged with methionine, is first loaded into the P site of the small ribosomal subunit, along with additional proteins called translation initiation factors.
B.
The initiator tRNA is distinct from the tRNA that normally carries methionine. Of all the tRNAs in the cell, only a charged initiator tRNA molecule is capable of binding tightly to the P site in the absence of the large ribosomal subunit.
C.
Next, the small ribosomal subunit loaded with the initiator tRNA binds to the 5ʹ end of an mRNA molecule, which is marked by the 5ʹ cap that is present on all eukaryotic mRNAs. The small ribosomal subunit then scans the mRNA, in the 5ʹ-to-3ʹ direction, until it encounters the first AUG.
D.
When this AUG is recognized by the initiator tRNA, several of the initiation factors dissociate from the small ribosomal subunit to make way for the large ribosomal subunit to bind and complete ribosomal assembly. Because the initiator tRNA is bound to the P site, protein synthesis is ready to begin with the addition of the next charged tRNA to the A site.
查看完整题目与答案
【单选题】Medea promised to help Jason, but only on the condition that if he succeeded, ( ).
A.
he would give the golden fleece to her
B.
he would let her be free
C.
he would take her with him and marry her
查看完整题目与答案
相关题目：
【简答题】企业号的消息中心可以对两类消息进行查看和管理,一类是 ,一类
查看完整题目与答案
【单选题】设 是来自总体 的样本,且 ,则( )是 的无偏估计.
A.
;
B.
;
C.
;
查看完整题目与答案
【单选题】如果A公司要求C公司开具增值税专用发票，C公司开具发票时应填写的增值税额为：
A.
31.97万元
B.
37.40万元
C.
41.12万元
D.
45.06万元
查看完整题目与答案
【单选题】When a quota is imposed in a domestic market:
A.
domestic producers capture all of any future increase in demand.
B.
foreign producers capture all of any future increase in demand.
C.
the government captures all of any future increase in demand.
D.
none of the above
查看完整题目与答案
【单选题】《特种设备安全监察条例》所称的特种设备是指涉及生命安全、危险性较大的锅炉、压力容器(含气瓶)、压力管道、电梯、起重机械、客运索道、大型游乐设施和场(厂)内专用机动车辆。
A.
正确
B.
错误
查看完整题目与答案
【单选题】它是最早成为中国被迫开放的通商口岸之一,工人阶级在这里首先登上政治舞台,中国共产党也从这里开始踏上革命征程。今天,它已经成为长江流域经济起飞的龙头。它是 ( )
A.
北京
B.
武昌
C.
武汉
D.
上海
查看完整题目与答案
【单选题】大环内酯类对下述何菌无效
A.
G+菌
B.
G-菌
C.
大肠杆菌、变形杆菌
D.
军团菌
E.
支原体和衣原体
查看完整题目与答案
【判断题】《特种设备安全监察条例》规定，特种设备是指涉及生命安全、危险性较大的锅炉、压力容器、压力管道等八种设备。
A.
正确
B.
错误
查看完整题目与答案
【多选题】How is the protein synthesis initiated in eukaryotes?
A.
In eukaryotes, an initiator tRNA, charged with methionine, is first loaded into the P site of the small ribosomal subunit, along with additional proteins called translation initiation factors.
B.
The initiator tRNA is distinct from the tRNA that normally carries methionine. Of all the tRNAs in the cell, only a charged initiator tRNA molecule is capable of binding tightly to the P site in the absence of the large ribosomal subunit.
C.
Next, the small ribosomal subunit loaded with the initiator tRNA binds to the 5ʹ end of an mRNA molecule, which is marked by the 5ʹ cap that is present on all eukaryotic mRNAs. The small ribosomal subunit then scans the mRNA, in the 5ʹ-to-3ʹ direction, until it encounters the first AUG.
D.
When this AUG is recognized by the initiator tRNA, several of the initiation factors dissociate from the small ribosomal subunit to make way for the large ribosomal subunit to bind and complete ribosomal assembly. Because the initiator tRNA is bound to the P site, protein synthesis is ready to begin with the addition of the next charged tRNA to the A site.
查看完整题目与答案
【单选题】Medea promised to help Jason, but only on the condition that if he succeeded, ( ).
A.
he would give the golden fleece to her
B.
he would let her be free
C.
he would take her with him and marry her
查看完整题目与答案
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