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【单选题】
在图所示的电路中,电源电压保持不变,现 将一电压表正确并联在该电路中,移动变阻器滑片,发现电压表与电流表示数的比值增大, 下列说法正确的是A.
电压表可能并联在a、b两点
B.
电压表一定并联在a、b两点
C.
电压表可能并联在a、c两点
D.
电压表一定并联在b、c两点
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【单选题】T0 make members 0f a team performbetter,the trainer first of all has to know their_______and weaknesses。
A.
strengths
B.
benefits
C.
techniques
D.
values
【单选题】Crows are probably the most frequently met and easily identifiable members of the native fauna of the United States. The great number of tales, legends, and myths about these birds indicates that peop...
A.
The ways in which crows differ from other common birds.
B.
The myths and legends about crows.
C.
The characteristics that make crows difficult to study.
D.
The existing methods for investigating crow behavior.
【单选题】What is implied about the Kennedy Club?
A.
It is exclusively for members.
B.
It is where the festival is normally held.
C.
It was not the first choice of venue.
D.
It frequently hosts functions.
【简答题】磨削和研磨导套孔时最常见的缺陷是
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