如图所示的电路中a1和a2是完全相同的灯泡线圈l的电阻可以忽略.下列说法中正确的是 A.合上开关k接通电路时a2先亮a1后亮最后 Template




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tomski如图所示的电路中a1和a2是完全相同的灯泡线圈l的电阻可以忽略.下列说法中正确的是 a.合上开关k接通电路时a2先亮a1后亮最后 coloring