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【判断题】
CMYK是用青、品红、黄、黑四种颜料含量来表示的一种颜色。A.
正确
B.
错误
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【简答题】Do advantages in technology make the world better or worse? I believe that advances in technology make the world better. The following are three reasons that I have to support my opinion. ( _____ )(1....
【简答题】在霍尔效应中，导体长4．0 cm，宽1．0 cm，厚1．0×10-3cm，沿长度方向载有3 A的电流，当磁感应强度为1．5 T的磁场垂直地通过该导体时，产生1．0×1 0-5V的横向霍尔电压V(在宽度两端)，如图所示。试求： (1)载流子的漂移速率； (2)每立方厘米载流子的数目； (3)设载流子是电子，就一给定的电流和磁场方向，确定霍尔电压的极性。
【简答题】在霍尔效应中，导体长4.0cm，宽1.0cm，厚1.0×10 -3 cm，沿长度方向载有3A的电流，当磁感应强度为1.5T的磁场垂直地通过该导体时，产生1.0×10 -5 V的横向霍尔电压V(在宽度两端)，如图所示。
【简答题】Questions 24to 27are based on the following passage. I have heard of the story of the world famous opera singer Tina Kiberg. As a child, Tina was a violinist and spent her free time practicing and p...
【单选题】Which of the following people are posing greater uncertainties for the State?
A.
Laid off workers.
B.
New graduates.
C.
Rural workers.
D.
All of these people.
【单选题】Which of the following would the author most probably agree?
A.
Not all of the developing world's most successful companies are globalizing.
B.
Companies venturing abroad most eagerly are the most successful at home.
C.
Local dynamos are the most successful firms all over the world.
D.
Globalizing is not good for companies in emerging economies.
【单选题】Which of the following statements would the author be likely to agree?
A.
The heavier the wood is, the better the boat is.
B.
The stronger players are more likely to be chosen in the dragon boat race.
C.
Good oarsmen can drive the boat in perfect direction.
D.
The final result of the race is dependant on three conditions.
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