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【单选题】
Which of the following statements is NOT true?
A.
Alfred the Great imposed a tax, called the danegeld, on the Saxonx.
B.
Alfred the Great started the English navy.
C.
Alfred the Great established schools and formulated a legal system.
D.
Alfred the Great reorganized the Saxon army, making it more efficient.
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举一反三
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?
A.
Peak value
B.
Root-mean-square value
C.
Average value
D.
Maximum value
查看完整题目与答案
【单选题】External shunts are sometimes used with ammeters to _______.
A.
increase meter sensitivity
B.
permit shunts with larger resistances to be utilized
C.
prevent damage to the meter movement from heat generated by the shunt
D.
enable the construction of a compact meter with a virtually unlimited range
查看完整题目与答案
【判断题】职业素养是“德育、智育、体育、美育”有机融合的结果
A.
正确
B.
错误
查看完整题目与答案
【判断题】职业素养是“德育、 智育、 体育、美育”有机融合的结果。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?
A.
Peak value
B.
Boot-mean-square value
C.
Average value
D.
Maximum value
查看完整题目与答案
【单选题】We have to renew the ammeters and voltmeters. 02010267
A.
We must replace the ammeters and voltmeters.
B.
The ammeters and voltmeters have been rectified.
C.
We don't have to renew the ammeters and voltmeters.
D.
Either the ammeters or the voltmeters need to be renewed.
查看完整题目与答案
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems including which of the following values of the waveforms measured?
A.
Peak value
B.
Root mean square value
C.
average value
D.
Maximum value
查看完整题目与答案
【单选题】In the sinusoidal steady-state circuit, the readings of ammeters A 1 and A 2 are 3A and 4A, respectively, then the reading of A is A .
A.
5A
B.
7A
C.
1A
D.
-1A
查看完整题目与答案
【单选题】胸部X线片示心影呈“梨形”。提示心脏异常是
A.
二尖瓣狭窄
B.
二尖瓣关闭不全
C.
主动脉瓣关闭不全
D.
心包积液
E.
主动脉瓣狭窄
查看完整题目与答案
【单选题】Ammeters must have a resistance, while voltmeters must have a resistance.
A.
high...low
B.
low...high
C.
low...low
D.
high...high
查看完整题目与答案
相关题目：
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?
A.
Peak value
B.
Root-mean-square value
C.
Average value
D.
Maximum value
查看完整题目与答案
【单选题】External shunts are sometimes used with ammeters to _______.
A.
increase meter sensitivity
B.
permit shunts with larger resistances to be utilized
C.
prevent damage to the meter movement from heat generated by the shunt
D.
enable the construction of a compact meter with a virtually unlimited range
查看完整题目与答案
【判断题】职业素养是“德育、智育、体育、美育”有机融合的结果
A.
正确
B.
错误
查看完整题目与答案
【判断题】职业素养是“德育、 智育、 体育、美育”有机融合的结果。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?
A.
Peak value
B.
Boot-mean-square value
C.
Average value
D.
Maximum value
查看完整题目与答案
【单选题】We have to renew the ammeters and voltmeters. 02010267
A.
We must replace the ammeters and voltmeters.
B.
The ammeters and voltmeters have been rectified.
C.
We don't have to renew the ammeters and voltmeters.
D.
Either the ammeters or the voltmeters need to be renewed.
查看完整题目与答案
【单选题】Ammeters and voltmeters used in sinusoidal AC power systems including which of the following values of the waveforms measured?
A.
Peak value
B.
Root mean square value
C.
average value
D.
Maximum value
查看完整题目与答案
【单选题】In the sinusoidal steady-state circuit, the readings of ammeters A 1 and A 2 are 3A and 4A, respectively, then the reading of A is A .
A.
5A
B.
7A
C.
1A
D.
-1A
查看完整题目与答案
【单选题】胸部X线片示心影呈“梨形”。提示心脏异常是
A.
二尖瓣狭窄
B.
二尖瓣关闭不全
C.
主动脉瓣关闭不全
D.
心包积液
E.
主动脉瓣狭窄
查看完整题目与答案
【单选题】Ammeters must have a resistance, while voltmeters must have a resistance.
A.
high...low
B.
low...high
C.
low...low
D.
high...high
查看完整题目与答案