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【单选题】
如图所示电路中,灯泡A、 B 的规格相同,电感线圈 L 的自感系数足够大且电阻可忽略。下列 关于此电路的说法中正确的是
A.
S 断开后的瞬间， A 立即熄灭， B 逐渐变暗最后熄灭
B.
S 断开后的瞬间， B 立即熄灭， A 闪亮一下后熄灭
C.
S闭合后的瞬间，A先亮，然后A变暗最后熄灭
D.
S 闭合后的瞬间， B 先亮， A 逐渐变亮，最后 A 、 B 一样亮
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