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【单选题】
数据库文件至少有几个?
A.
1个
B.
2个
C.
3个
D.
4个
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参考答案：
参考解析：
知识点：
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举一反三
【单选题】与 mRNA 中密码子 5’-ACG-3’ 相应的反密码子 (5’ → 3’) 是
A.
CGU
B.
CGA
C.
UCG
D.
UGC
E.
GCU
查看完整题目与答案
【单选题】与mRNA中密码子5’-ACG-3’相应的反密码子（5’→3’）是
A.
CGU
B.
CGA
C.
UCG
D.
UGC
查看完整题目与答案
【单选题】Even a mighty express train can be held up by signals. Which of the following words can be used to replace “ held up ”? [     ]
A.
delayed
B.
slowed up
C.
halted
D.
retarded
查看完整题目与答案
【单选题】The tracks on a disk which can be accessed without repositioning the R/W heads is
A.
Surface
B.
Cylinder
C.
Cluster
D.
All of the above
E.
None of the above
查看完整题目与答案
【单选题】与mRNA中密码子5′ACG3′相对应的tRNA的反密码子是
A.
5′UGC3′
B.
5′CGU3′
C.
5′TGC3′
D.
5′UCG3′
查看完整题目与答案
【单选题】与mRNA中密码子5'-ACG-3'相应的反密码子(5'→3')是
A.
CGU
B.
CGA
C.
UCG
D.
UCC
E.
GCU
查看完整题目与答案
【单选题】Which statement can be supported by Heather Dickinson and Louise Parker's new findings?
A.
Radiation has contributed to the disease.
B.
Putting a lot of people from rural area in a large towns increases the risk of childhood leukaemia.
C.
Population mixing is the most important reason for leukaemia cluster.
D.
Childhood leukaemia is caused by an unusual infection.
查看完整题目与答案
【单选题】与mRNA中密码子5’-ACG-3’相应的反密码子(5’-3’)是
A.
CGU
B.
CGA
C.
GCU
D.
UGC
查看完整题目与答案
【单选题】Which statement can be supported by Heather Dickinson and Louise Parker's new findings?
A.
Radiation has contributed to leukaemia.
B.
Putting a lot of people from rural area in a large towns increases the risk of childhood leukaemia.
C.
Population mixing is the most probable cause for leukaemia clusters.
D.
Childhood leukaemia is caused by an unusual infection.
查看完整题目与答案
【单选题】which of the following statements is true according to the text?
A.
70% of the cars can be rented out on holiday.
B.
70% of the customers are white-collar employees.
C.
More firms are open for service during holiday seasons.
D.
Some firms rent out all their cars during holiday seasons.
查看完整题目与答案
相关题目：
【单选题】与 mRNA 中密码子 5’-ACG-3’ 相应的反密码子 (5’ → 3’) 是
A.
CGU
B.
CGA
C.
UCG
D.
UGC
E.
GCU
查看完整题目与答案
【单选题】与mRNA中密码子5’-ACG-3’相应的反密码子（5’→3’）是
A.
CGU
B.
CGA
C.
UCG
D.
UGC
查看完整题目与答案
【单选题】Even a mighty express train can be held up by signals. Which of the following words can be used to replace “ held up ”? [     ]
A.
delayed
B.
slowed up
C.
halted
D.
retarded
查看完整题目与答案
【单选题】The tracks on a disk which can be accessed without repositioning the R/W heads is
A.
Surface
B.
Cylinder
C.
Cluster
D.
All of the above
E.
None of the above
查看完整题目与答案
【单选题】与mRNA中密码子5′ACG3′相对应的tRNA的反密码子是
A.
5′UGC3′
B.
5′CGU3′
C.
5′TGC3′
D.
5′UCG3′
查看完整题目与答案
【单选题】与mRNA中密码子5'-ACG-3'相应的反密码子(5'→3')是
A.
CGU
B.
CGA
C.
UCG
D.
UCC
E.
GCU
查看完整题目与答案
【单选题】Which statement can be supported by Heather Dickinson and Louise Parker's new findings?
A.
Radiation has contributed to the disease.
B.
Putting a lot of people from rural area in a large towns increases the risk of childhood leukaemia.
C.
Population mixing is the most important reason for leukaemia cluster.
D.
Childhood leukaemia is caused by an unusual infection.
查看完整题目与答案
【单选题】与mRNA中密码子5’-ACG-3’相应的反密码子(5’-3’)是
A.
CGU
B.
CGA
C.
GCU
D.
UGC
查看完整题目与答案
【单选题】Which statement can be supported by Heather Dickinson and Louise Parker's new findings?
A.
Radiation has contributed to leukaemia.
B.
Putting a lot of people from rural area in a large towns increases the risk of childhood leukaemia.
C.
Population mixing is the most probable cause for leukaemia clusters.
D.
Childhood leukaemia is caused by an unusual infection.
查看完整题目与答案
【单选题】which of the following statements is true according to the text?
A.
70% of the cars can be rented out on holiday.
B.
70% of the customers are white-collar employees.
C.
More firms are open for service during holiday seasons.
D.
Some firms rent out all their cars during holiday seasons.
查看完整题目与答案