题目

--Now that you like the car so much, why not drive it back?—Well, I can’t afford __car. A. that big a    B. a that big   C. that a big    D. a big that 答案：A某个小灯泡上标有“6V 6W”字样，其电流随两端电压变化关系的曲线如图所示。那么当小灯泡两端的电压为2V时，小灯泡的电功率为_______W。小灯泡正常工作1min，消耗的电能为__________J。