题目

小灯泡灯丝的电阻会随温度的升高而变大。某同学为研究这一现象,用实验得到如下数据(I和U分别表示小灯泡上的电流和电压): I ( A )00.120.210.290.340.380.420.450.470.490.50 U (V )00.200.400.600.801.001.201.401.601.802.00 答案:(1)图略;(2)A;(3)<  解析: 略--- Bad luck. They didn’t offer the job to me.--- ______ You’ve been well prepared for the interview.A.So what?B.What if?C.How come?D.What about?
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