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【单选题】
原核生物的起始tRNA的合成需（ ）
A.
N10－CHO FH4
B.
N5－CHO FH4
C.
N5-CH3 FH4
D.
N5，N10－CH2－FH4
E.
N5，N10－CHO FH4
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参考答案：
举一反三
【单选题】The representatives voted _________ to modify the constitution in order to meet the need of expansion.
A.
at a stretch
B.
to perfection
C.
with one accord
D.
in justification
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【判断题】导致某一车窗只能向一 个方向运动的故障原因可能是:开关触点接触不良、控制导线或车窗升降器不良等。( )
A.
正确
B.
错误
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【简答题】What is the requirement of the most liberal wing of the Democratic Party?
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【单选题】建立严密的法制监督体系,最关键的就是( )
A.
党内监督和人大监督
B.
人大监督和行政监督
C.
行政监督和司法监督
D.
人大监督和审计监督
查看完整题目与答案
【判断题】在关闭文档时,如果文档已经被保存,则会直接关闭文档,如果被关闭的文档没有被保存过,则会打开一个对话框,询问是否保存文档,若需要保存,则单击是按钮,若不需要保存,则单击否按钮。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The emergency center is in great need of O-type blood，but there is__________ at hand.
A.
nothing
B.
none
C.
any
D.
much
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【单选题】在以下几种茶叶中具有解脂肪、助消化之功效,被誉为减肥健美的是( )。
A.
绿茶
B.
红茶
C.
乌龙茶
D.
白茶
查看完整题目与答案
【单选题】当汽车的某个电动车窗只能向一个方向运动,产生的可能原因是( )。
A.
ECU故障
B.
分开关至主开关可能出现断路
C.
车窗电动机损坏
D.
分开关至电动机断路
查看完整题目与答案
【单选题】Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human “guinea pig” is tested using a regular tool. Measurements are taken of the amount...
A.
improve efficiency
B.
increase production
C.
reduce work load
D.
improve comfort
查看完整题目与答案
【单选题】Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human “guinea pig” is tested using a regular tool. Measurements are taken of the amount...
A.
Electronic instruments and a regular tool.
B.
A human “guinea pig” and a regular tool.
C.
Electronic instruments and a human “guinea pig”.
D.
Electronic instruments, a human “guinea pig” and a regular tool.
查看完整题目与答案
相关题目：
【单选题】The representatives voted _________ to modify the constitution in order to meet the need of expansion.
A.
at a stretch
B.
to perfection
C.
with one accord
D.
in justification
查看完整题目与答案
【判断题】导致某一车窗只能向一 个方向运动的故障原因可能是:开关触点接触不良、控制导线或车窗升降器不良等。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】What is the requirement of the most liberal wing of the Democratic Party?
查看完整题目与答案
【单选题】建立严密的法制监督体系,最关键的就是( )
A.
党内监督和人大监督
B.
人大监督和行政监督
C.
行政监督和司法监督
D.
人大监督和审计监督
查看完整题目与答案
【判断题】在关闭文档时,如果文档已经被保存,则会直接关闭文档,如果被关闭的文档没有被保存过,则会打开一个对话框,询问是否保存文档,若需要保存,则单击是按钮,若不需要保存,则单击否按钮。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The emergency center is in great need of O-type blood，but there is__________ at hand.
A.
nothing
B.
none
C.
any
D.
much
查看完整题目与答案
【单选题】在以下几种茶叶中具有解脂肪、助消化之功效,被誉为减肥健美的是( )。
A.
绿茶
B.
红茶
C.
乌龙茶
D.
白茶
查看完整题目与答案
【单选题】当汽车的某个电动车窗只能向一个方向运动,产生的可能原因是( )。
A.
ECU故障
B.
分开关至主开关可能出现断路
C.
车窗电动机损坏
D.
分开关至电动机断路
查看完整题目与答案
【单选题】Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human “guinea pig” is tested using a regular tool. Measurements are taken of the amount...
A.
improve efficiency
B.
increase production
C.
reduce work load
D.
improve comfort
查看完整题目与答案
【单选题】Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human “guinea pig” is tested using a regular tool. Measurements are taken of the amount...
A.
Electronic instruments and a regular tool.
B.
A human “guinea pig” and a regular tool.
C.
Electronic instruments and a human “guinea pig”.
D.
Electronic instruments, a human “guinea pig” and a regular tool.
查看完整题目与答案
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