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【单选题】
关于霍尔传感器下列说法正确的是A.
霍尔传感器具有在静态下感受磁场的能力
B.
当控制电流不变时，霍尔电势正比于磁感应强度
C.
当控制电流、磁感应强度均变时，传感器的输出与二者的乘积成反比
D.
当磁感应强度恒定不变时，霍尔电压与控制电流成反比
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【判断题】Traveling is the best way to learn about other cultures. Firsthand experience is most definitive way to gain knowledge and experience.
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