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【单选题】
某高斯信道带宽为4kHz,输出信噪比为63倍,则信道容量为()
A.
12kb/s
B.
18kb/s
C.
24kb/s
D.
36kb/s
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【判断题】采用移相法测量电气设备介质损耗角正切值tanδ时,如果移相成功,试验电流与干扰电流同相位,则电源正反相测得的两个tanδ应相等。( )
A.
正确
B.
错误
【简答题】给小动物排排队. (1)按从大到小的顺序排列. 4.2,4.02,4.42,4.24,4.04; ______>______>______>______>______ (2)按从小到大的顺序排列. 5.01,0.51,0.15,1.05,1.50 ______<______<______<______<______.
【简答题】为什么说改革是一场新的革命,是社会主义制度的自我完善和发展?
【判断题】互联网金融(备选)监管应提高行业自律。
A.
正确
B.
错误
【单选题】Who will work out the plan to build the house?
A.
The builder alone.
B.
The owner of the house.
C.
All the family members.
D.
The owner and the builder together.
【判断题】采用移相法测量电气设备介质损耗角正切值tanδ时,如果移相不成功,试验电流与干扰电流不在同一相位,则必须重新进行移向操作。( )
A.
正确
B.
错误
【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. Peter Judd joined the army when he was 18, and for several months he was taught...
A.
In order to be a good soldier.
B.
In order to be good at shooting.
C.
In order to make friends.
D.
We don't know.
【单选题】碱中毒患者易出现手足抽搐的主要原因是
A.
血清Na + 减少
B.
血清游离Ca ++ 减少
C.
血清Cl — 减少
D.
血清K + 减少
E.
血清Mg ++ 减少
【单选题】碱中毒患者易出现手足抽搐的主要原因是
A.
血清K+减少
B.
血清Ca2+减少
C.
血清Cl-减少
D.
血清Na+减少
E.
血清Mg2+减少
【单选题】He left the book ____ where he had found it.
A.
lain
B.
lying
C.
laying
D.
lay
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