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【单选题】
用电器甲和乙,其电流与其两端电压关系如图所示,其中直线表示用电器甲的电流与其两端电压关系图。下列说法正确的是 ( )A.
用电器甲电阻不变，大小为0.1 Ω
B.
用电器乙电阻随着电流增大而 变大，最大值为 10 Ω
C.
如果把这两个用电器串联接在6 V的电源上，电路中的电流是0.43 A
D.
如果把这两个用电器并联接在4 V的电源上，干路中的电流是0.65 A
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