题目内容
（请给出正确答案）
If the voltage remains constant, the more the resistance, the less the current.
A．如果电压稳定，电阻变大，电流变小。
B．如果电压不变，电阻和电流成反比。
C．电阻和电流的大小之比取决于电压的大小。
D．电压越高，电阻就越大，电流就越小。
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